Alternatives to Avalonia UI

Compare Avalonia UI alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Avalonia UI in 2024. Compare features, ratings, user reviews, pricing, and more from Avalonia UI competitors and alternatives in order to make an informed decision for your business.

  • 1
    Ionic

    Ionic

    Drifty

    The Ionic Platform allows you to bring your apps to market faster with an integrated app platform built on the leading cross-platform mobile SDK. Build, secure, and deliver new mobile apps—and transform existing ones—across iOS, Android, and Web platforms from a single codebase. Full scalability—Grow from prototype to production to enterprise-scale, without having to think about capacity, reliability, or performance. Better apps, everywhere—Slash your development time and costs with a platform that lets you write once and deploy anywhere—iOS, Android, and Web. The core of the Ionic development experience is Ionic Capacitor, a cross platform native runtime that runs equally well on native iOS and Android mobile devices, as well as any web browser. The big difference is that, unlike traditional native development or cross-platform approaches, the UI of a Capacitor app runs primarily in the browser.
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    Alpha Anywhere

    Alpha Anywhere

    Alpha Software Corporation

    Alpha Anywhere is the only development platform with both low-code and no-code capabilities. Developers can rapidly create secure, cross-platform mobile and web business apps. Alpha leads in offline development, ensuring that data can be captured AND accessed (database lookups/media file retrieval) offline. A powerful bi-directional API can integrate with existing systems of record and workflows, tie into web services, and meet advanced security requirements. Offers: - pre-built templates - full-stack development - sophisticated analytics/dashboards - full-stack development - scale-able, secure, and reliable cloud deployment Professional developers and citizen developers can use the Alpha TransForm mobile forms builder to digitize paper forms in minutes. Offers offline operation, built-in analytics, and unmatched speed, power, and flexibility in the no-code segment.
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    Joget DX

    Joget DX

    Joget, Inc.

    Joget is an open source no-code/low-code application platform for faster, simpler digital transformation. It combines the best of business process automation, workflow management and rapid application development in a simple, flexible and open platform. Visual and web-based, it empowers both coders and non-coders to instantly build and maintain apps anytime, anywhere. With more than 3,000 installations, 400+ enterprise customers and 12,000 community users worldwide across various industries (including finance, manufacturing, IT, and more), Joget is a proven platform for a wide spectrum of organizations ranging from Fortune 500 companies to government agencies and small businesses. Every organization demands easy to build and adaptable applications, and Joget enables those application delivery goals with a low total cost of ownership.
    Starting Price: $2/user/month
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    Neptune DXP

    Neptune DXP

    Neptune Software

    Neptune Software's leading low-code app development platform - Neptune DXP – digitizes and optimizes business processes and user interfaces – at scale and with ease. Neptune DXP offers enterprise mobility, as well as the best low-code app development for SAP customers with the choice of no-code/low-code app development. The platform gives IT departments the right tools to build the apps they need. Neptune DXP provides a fast, cost-effective, and future-proof way to industrialize the development of custom applications (especially SAP Fiori, SAP mobile applications), turning your IT organization into an app factory, saving time and money on enterprise app development, app integration, and enterprise app operations.
  • 5
    Deskree

    Deskree

    Deskree

    The first low-code cloud. Unleash your app's potential with Deskree, the no-code backend platform that simplifies and accelerates the infrastructure development process. Effortlessly create and deploy your backend in minutes, regardless of your experience in backend or devops. No more struggling with infrastructure provisioning, architecture planning, and complex CI/CD pipelines! Deskree offers a comprehensive suite of features, including database management, authentication, user roles and permissions, REST and GraphQL API, and more. Transform your app development journey with the power of Deskree's user-friendly, intuitive platform.
    Starting Price: $19.99 per month
  • 6
    Uno Platform

    Uno Platform

    Uno Platform

    Build pixel-perfect, single-codebase applications for Mobile, Web and Desktop using C#, XAML and .NET. The first C# & XAML, free and open-source platform for creating true single-source, multi-platform applications. Reuse 99% of the business logic and UI layer across native mobile, web, and desktop. Maintain pixel-perfect control over where pixels go while having a choice of developing platform-specific or custom look and feel of your application. Familiarity and richness of C# and XAML combined with productivity boosts of hot reload, hot restart, edit and continue and more. Use familiar editors like Visual Studio, Visual Studio Code or Rider. Free and paid support is available by both community and our team. Chats, tickets or even screen sharing!
    Starting Price: Free
  • 7
    Baasic

    Baasic

    Mono Software

    A platform for rapid web and mobile app development using pre-existing front-end modules and scalable back-end infrastructure. Baasic is a full-stack platform-as-a-service, covering both front and back-end aspects of web and mobile application development. It can be used with client-side javascript frameworks and all major server-side languages and technologies. You can even bring new life to your static HTML sites. However, we are well aware that one size never really fits all – that's why Baasic allows you to mix and match the right tools for each individual scenario. You don't have to start from scratch. Choose from a wide range of web or mobile application startup kits, ranging from simple sites to complex applications, all free and open-sourced.
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    CodeIgniter

    CodeIgniter

    CodeIgniter

    CodeIgniter is an Application Development Framework - a toolkit - for people who build web sites using PHP. Its goal is to enable you to develop projects much faster than you could if you were writing code from scratch, by providing a rich set of libraries for commonly needed tasks, as well as a simple interface and logical structure to access these libraries. CodeIgniter lets you creatively focus on your project by minimizing the amount of code needed for a given task. Where possible, CodeIgniter has been kept as flexible as possible, allowing you to work in the way you want, not being forced into working any certain way. The framework can have core parts easily extended or completely replaced to make the system work the way you need it to. In short, CodeIgniter is the malleable framework that tries to provide the tools you need while staying out of the way.
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    Appery.io
    Appery.io is a low-code app development platform that makes creating hybrid mobile apps, web apps, and progressive web apps (PWAs) easy. Creating a custom app UI has never been easier. Leverage the speed of drag-and-drop functionality and the power of JavaScript to turn your idea into a complete application in days instead of months. Appery.io is a web, PWA, and mobile app development platform. Cross-platform applications built with Appery.io will work smoothly and look great across all popular devices and operating systems. Submit mobile apps to the App Store and Google Play, or deploy them as web apps and PWAs, all with a single codebase. Our low-code app development platform is easy to master even for total beginners. Seasoned app developers, on the other hand, will continue working with the frameworks they love, such as Ionic and Angular, augmented with visual tools to boost their productivity.
    Starting Price: $30 per month
  • 10
    Flutter

    Flutter

    Google

    Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase. Paint your app to life in milliseconds with Stateful Hot Reload. Use a rich set of fully-customizable widgets to build native interfaces in minutes. Quickly ship features with a focus on native end-user experiences. Layered architecture allows for full customization, which results in incredibly fast rendering and expressive and flexible designs. Flutter’s widgets incorporate all critical platform differences such as scrolling, navigation, icons and fonts, and your Flutter code is compiled to native ARM machine code using Dart's native compilers. Flutter's hot reload helps you quickly and easily experiment, build UIs, add features, and fix bugs faster. Experience sub-second reload times without losing state on emulators, simulators, and hardware.
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    Wisej.NET

    Wisej.NET

    Ice Tea Group

    Wisej.NET provides a platform and set of tools designed to ease the burden of developing, testing, deploying, and maintaining complex AI-powered business software. It bridges the gap between traditional WinForms-style desktop applications and the web by empowering developers to leverage their existing .NET and C# or VB.NET) skills. Developers are able to use the tools they are familiar with, like a pixel-perfect design surface and drag-and-drop controls with the languages they are comfortable with (C# or VB.NET) to build real-time web applications without having to learn HTML, CSS, or JavaScript. They can stay in their favorite IDE like Visual Studio to take advantage of features like IntelliSense, integrated debugging, design surfaces and source control integration. Front-end developers can leverage their knowledge of web technologies to augment applications and seamlessly integrate third-party packages like HTML5 charting libraries and ASP.NET controls.
    Starting Price: $990
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    Solara

    Solara

    Widgetti BV

    Many Python frameworks can handle basic dashboards but falter with complex ones, often leading teams to split into frontend and backend roles, causing various challenges. Solara is a new web framework that integrates ReactJS principles with Python simplicity. It offers a flexible API for various UI complexities and efficient state management. Solara supports a range of applications, from prototypes to intricate dashboards, and is compatible with platforms like Jupyter, Voilà, and various web servers. It emphasizes code quality, developer accessibility, and robust testing.
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    Kendo UI

    Kendo UI

    Progress Software

    Kendo UI is the ultimate collection of JavaScript UI components with libraries for jQuery, Angular, React, and Vue. Quickly build eye-catching, high-performance, responsive web applications—regardless of your JavaScript framework choice. Easily add advanced JavaScript components into your existing or new designs. Kendo UI’s hundreds of components handle everything you need to satisfy your users’ requirements. Add advanced components such as data grids, charts, schedulers, and calendars with just a few lines of code. Each is crafted for performance and customizability. Switching frameworks and starting new projects won’t require a new license or a big learning curve. Everything is included and up-to-date, APIs are consistent and theming is easy. Our QA process coupled with world-class support teams and a large user community means that our components will always work the way they’re supposed to—guaranteed.
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    Vaadin

    Vaadin

    Vaadin

    Vaadin is a web app development platform for Java. It helps you build reliable web apps with great UX faster than before. Building an enterprise web app involves a lot of moving pieces. Vaadin simplifies the process with an integrated web app development platform for Java backends. Vaadin comes with all the components, frameworks, and tools you need to build a reliable, secure, app with great UX. Research shows that good user experience (UX) increases employee engagement, helps digital transformations to succeed, and avoids costly mistakes. The Vaadin Design System provides UI components and UX patterns that help you build consistently good user experiences in every app. Better yet, you can use it to build a custom design system for your organization. Vaadin comes with 45+ UI components that help you build consistent UIs fast. The theme can be customized to match your brand. Vaadin components work with screen readers and assistive devices.
    Starting Price: $139 per month
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    Adalo

    Adalo

    Apto Labs

    Meet Adalo. Turn your startup idea into reality without coding! Meet Adalo. Turn Your Startup Idea Into Reality Without Coding! Gone are the days of searching for the perfect developer to bring your ideas to life. Automatically add interactions and database configuration without any code... or if you’ve already got your API, Adalo can integrate with that. Gone are the days of searching for the perfect developer to bring your ideas to life. Automatically add interactions and database configuration without any code... or if you’ve already got your API, Adalo can integrate with that. The best makers iterate the fastest. Now you can afford to. After hiring designers and developers, most entrepreneurs don’t have any money left to iterate on their products, so they cross their fingers and hope. With Adalo, you’re in complete control to add, adjust, or even build a new app. Our company is named after Ada Lovelace, widely considered to be the world’s first computer programmer.
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    GeneXus

    GeneXus

    GeneXus

    GeneXus is the best low-code platform you've never heard of. It's a Software Development Platform that simplifies and automates the tasks of creating and evolving enterprise applications and multi-channel user-experiences. Higher productivity, with automatic maintenance & evolution. Multi-Experience, we continuously create new code generators. Agile, incremental approach, with fully functional prototypes. Easier to learn, one single language to cover all technologies. Future-proof, we've been around for 30 years, evolving for you. No runtime fees, we charge by developer. Best theoretical framework, which allows us to evolve. Best coverage in the market: Most technologies, most languages, most markets and industries. GeneXus uses Artificial Intelligence techniques to create software, enabling truly incremental development of apps, providing an enterprise low-code, future-proof development platform.
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    Halosys

    Halosys

    Sonata Software

    Halosys provides a rich set of back end connectors for building and managing your next generation secure and personalized mobile and web applications. Build your applications with front end tools and frameworks of your choice and easily add business logic, push notifications, authentication, analytics, offline sync to your applications on a single platform. Focus on front end application development while leveraging the rich back end capabilities of the platform. Halosys offers a rich set of SDK's for all major client development environments including Cordova, IOS, Android, Xamarin, Windows 10, React Native and Mobile Web making backend application integration seamless and intuitiv
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    sterlo

    sterlo

    sterlo

    sterlo is an Enterprise No-Code platform that enables users to develop Web and Mobile apps in a code-free environment. Designed to empower businesses across diverse industries and of varying sizes, sterlo offers unparalleled freedom and flexibility to build fully-functional apps. sterlo offers a wide range of features, including secure authentication, custom data connections, document management system, communication management and extensive integrations to experience accelerated app creation. sterlo facilitates digital transformation that matters and changes the way apps are developed worldwide.
    Starting Price: $12/user/month
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    Zeroqode

    Zeroqode

    Zeroqode

    Zeroqode is a platform for all things no-code - templates, courses, backends, web2native, development services, etc. No-code technology makes launching new apps, startups or products up to 10 times faster. We are the #1 no-code app template publisher that created a number of functional app templates with polished UI/UX. Among them are: templates similar to AirBNB, Uber, Trello, Slack Product Hunt, LinkedIn, Instagram and many others. Now, while launching an app you can use more of your time and energy on carefully planning the app architecture and doing something completely unique for your product since you save so much time by using no-code framework and templates for everything else. What if you really love to code? You still win big time by focusing only on coding the most complex parts of your app! Work on something you never had enough time for and dedicate your full attention to it! Everything you need to build and monetize no-code products.
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    GoodBarber

    GoodBarber

    GoodBarber

    GoodBarber is an App Builder, developed in France, enabling users to create native mobile apps for iOS and Android and PWAs (Progressive Web App) without coding. By industrializing the creation process, GoodBarber can significantly reduce the cost of owning an app. With more than 40 million apps downloaded each year, GoodBarber receives ongoing feedback to maintain the quality, performance and robustness of its apps at the highest level. GoodBarber's offer is made up of 3 main products: - eCommerce apps: providing an impeccable shopping experience on smartphones has become an essential requirement for doing business online. - Content Management apps : for content editor, community manager or local business manager. your message must be accessible from several channels to reach your audience. Your readers will access it from a native mobile app for iOS and Android or a PWA. - Reseller program: generate income by creating and selling apps without coding
    Starting Price: $25.00/month
  • 21
    Thunkable

    Thunkable

    Thunkable

    Web-based solution that helps businesses develop applications through component library, live tests, event blocks, and more. Design beautiful and powerful native apps on Thunkable without coding. Publish your app on Android, iOS, and the Web. Incubated at Google and MIT, backed by YCombinator. One project, three cross-platform apps, no coding. Add motion and smooth transitions to your app with lottie animations. On Thunkable, every app project is automatically created as a native Android app, native iOS app and mobile web app (on any platform), it's pretty magical. Start with a new project, or customize an existing sample app from our growing gallery of open sourced projects. Thunkable has an amazingly active and engaged community to help you with all your app building questions. We also offer live-chat support. Build your own apps by dragging and dropping your favorite components and connecting them together with blocks.
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    Xamarin

    Xamarin

    Microsoft

    Free. Cross-platform. Open source. An app platform for building Android and iOS apps with .NET and C#. Use .NET and C# to create native apps for the billions of Android, iPhone, iPad, Mac, and Windows devices around the world. Add to that sharing code with any .NET app, empowering you to be more productive and build apps faster than ever across all platforms. Ready to take code sharing to the next level? Xamarin.Forms is an open source mobile UI framework from Microsoft for building iOS, Android, & Windows apps with .NET from a single shared codebase. Whether you want a consistent look across platforms or prefer native look and feel, Xamarin.Forms will get you up and running in no time. .NET is a developer platform made up of tools, programming languages, and libraries for building many different types of applications. Xamarin extends the .NET developer platform with tools and libraries specifically for building apps for Android, iOS, tvOS, watchOS, macOS, and Windows.
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    Marionette

    Marionette

    Marionette

    Organize your app in terms of small Views. Marionette makes it easy to compose rich layouts out of small components. We've added tons of features from templateHelpers, to a declarative UI hash, that will keep you from ever wanting to go back. Share complex UI interactions across views. Behaviors are like mixins, without all of the pain associated with property collision. Decoupled communication between your application components with a powerful messaging system. Write classes with the same API as your views. Marionette Objects support features like extend, events, initialize, and more. Marionette community is home to the most welcoming and vibrant discussions in the Backbone ecosystem. Stop spending more time thinking about your framework than your app. Marionette will never get in the way of you and your code.
    Starting Price: Free
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    Sails

    Sails

    Sails

    Build practical, production-ready Node.js apps in a matter of weeks, not months. Sails is the most popular MVC framework for Node.js, designed to emulate the familiar MVC pattern of frameworks like Ruby on Rails, but with support for the requirements of modern apps, data-driven APIs with scalable, service-oriented architecture. Sails makes it easy to build custom, enterprise-grade Node.js apps. Building on top of Sails means your app is written entirely in JavaScript, the language you and your team are already using in the browser. Sails bundles a powerful ORM, Waterline, which provides a simple data access layer that just works, no matter what database you're using. Sails comes with blueprints that help jumpstart your app's backend without writing any code. Since Sails translates incoming socket messages for you, they're automatically compatible with every route in your Sails app. Sails offers commercial support to accelerate development and ensure best practices in your code.
    Starting Price: Free
  • 25
    ManageEngine AppCreator
    ManageEngine AppCreator guarantees up to 10 times faster application development and deployment when compared with conventional methods. AppCreator is equipped with drag-and-drop toolsets, allowing you to visually develop forms, pages, and reports, and ensuring you ship applications with speed, security, and privacy. It is a rapid application development platform that runs on your own servers. It has tools that support visual development of applications, including drag-and-drop builders. Low-code means you need to use only minimal coding to implement custom business logic. AppCreator's scripting language is Deluge, which is user-friendly. AppCreator’s drag-and-drop form builder allows you to easily create forms that can collect any type of data that you want. The page builder allows you to drag-and-drop page elements to build visually appealing dashboards, without breaking a sweat.
    Starting Price: $1,995 per year
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    ACE4J

    ACE4J

    ACE4J

    The Adaptive Calculation Engine for Java ACE4J provides a reliable platform for converting Excel-based applications into web applications at a low cost, efficiently, and with guaranteed easy maintenance and support in the future. At the same time ACE4J is a modern formula language based on a robust and efficient calculation engine, that is capable of evaluating complex Excel formulas. Thus it is also a great tool for new Java based Web applications that require heavy calculations. The Adaptive Calculation Engine (ACE4J) is a Java API used to evaluate the formulas written in Microsoft Excel style. This engine provides the most popular Microsoft Excel functions which are frequently encountered in applications that require heavy calculations. The number of available formulas and features increases with every Adaptive Calculation Engine release based on feedback from our customers. Adaptive Calculation Engine is capable of evaluating thousands of formulas within seconds.
    Starting Price: $2,999 one-time payment
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    AWS Amplify
    Fastest, easiest way to develop mobile and web apps that scale. AWS Amplify is an end-to-end solution that enables mobile and front-end web developers to build and deploy secure, scalable full stack applications, powered by AWS. With Amplify, you can configure app backends in minutes, connect them to your app in just a few lines of code, and deploy static web apps in three steps. Get to market faster with AWS Amplify. Use the Amplify CLI guided workflows to set up best-in-class backends for authentication, storage, APIs, and other common use cases in minutes. With AWS, your app scales automatically and transparently, with built-in best practices for security, reliability, and global availability and access to the underlying resources in the AWS console. Use Amplify Libraries to connect new or existing cloud backends to your mobile and web app. Supports Android, iOS, React, Flutter and more. Add features such as auth (Amazon Cognito), storage (Amazon S3), data, AI/ML, and more.
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    Fliplet

    Fliplet

    Fliplet

    Prefab apps combine drag-and-drop app editors with the extensibility of open source components. Enable anyone to create apps without running up against feature limitations. Use our existing library of prefab components or create your own. Writing code and maintaining a single app can be a full time job. Fliplet offers drag and drop prefab components that will probably cover 90% of your features. They've already been stress-tested by real users at scale and we'll maintain them for device, OS and security updates. There's a lot going on underneath the hood just to keep your app running. Things like app security, user analytics, data integrations, cross-device compatibility, OS updates. We handle this for you. We understand we may not provide all the features you need out of the box. If you do need something highly custom, you can extend Fliplet with a small amount of code (JS, HTML, CSS). We will even do it for you.
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    AppSheet

    AppSheet

    Google

    A trusted and scalable platform for mobile apps. Here's the reality: too many apps need to be built and there are not enough IT resources to create them. Enter AppSheet, a no code development platform that anyone can use to build and deploy apps. Empower your business users, and anyone else in your company to build apps. But ensure that those apps remain under centralized management and control with AppSheet for the Enterprise. AppSheet for the Enterprise is a trusted platform for building, publishing and managing mobile apps. It promotes innovation, agility, and flexibility throughout your organization while enabling security and governance. Connect data and software to a unified platform that’s fully integrated with Google Workspace. Integrate with Google Workspace apps like Gmail, Sheets, and Spaces. Connect to third-party apps such as Office 365, Dropbox, and Salesforce.com. Integrate with SQL databases, Apigee, REST APIs, and OData.
    Starting Price: $5 per user per month
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    Iron Speed Designer
    Simply point to an existing database and let Iron Speed Designer create a visually stunning, feature-rich .NET application that is easy to customize. Our professionally-designed layouts are intuitive and flexible. Pages are easy to customize, so you can choose what to include. Efficient data entry panels update multiple tables in a single transaction. You can even edit multiple records in a convenient spreadsheet format. Easily develop applications for Apple, Android and other mobile devices which are ready to submit to the App Store and Google Play. Page- and component-level access control. Single sign-on. Remember user name and password. Lost password retrieval. Data and URL parameter encryption. Display Google Maps. Build location-aware mobile apps. Filter and sort records by proximity to your location. Convert from street address to latitude and longitude. Visualize important trends with automatically configured charts and graphs.
    Starting Price: $749 one-time payment
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    Stacker

    Stacker

    Stacker

    Build custom software that empowers your partners, teammates and customers. Instantly create apps powered by your data. Allow customers, clients and partners to self-serve through a branded portal. Build it yourself, whatever you can imagine. Easily create powerful software interfaces for your business's data in minutes, without needing developers. Software that you control, not the other way around. Off-the-shelf software doesn't fit your business. It doesn't fit anyone. Gain unprecedented access control over who can view and edit your data, with customizability that scales with your business. Share your data with whoever needs it. Collaborate with colleagues, connect multiple data sources, and share your apps with teammates, customers, and partners.
    Starting Price: $79 per month
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    Jetpack Compose
    Jetpack Compose is Android’s recommended modern toolkit for building native UI. It simplifies and accelerates UI development on Android. Quickly bring your app to life with less code, powerful tools, and intuitive Kotlin APIs.
    Starting Price: Free
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    Apache Cordova

    Apache Cordova

    Apache Software Foundation

    Mobile apps with HTML, CSS & JS. Target multiple platforms with one code base. Free and open source. Reusable code across platforms, support for offline scenarios, access native device APIs. Cordova command-line runs on Node.js and is available on NPM. Follow platform specific guides to install additional platform dependencies. Create a blank Cordova project using the command-line tool. Navigate to the directory where you wish to create your project and type cordova create <path>. After creating a Cordova project, navigate to the project directory. From the project directory, you need to add a platform for which you want to build your app. Cordova wraps your HTML/JavaScript app into a native container which can access the device functions of several platforms. These functions are exposed via a unified JavaScript API, allowing you to easily write one set of code to target nearly every phone or tablet on the market today and publish to their app stores.
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    React Native
    React Native combines the best parts of native development with React, a best-in-class JavaScript library for building user interfaces. Use a little—or a lot. You can use React Native today in your existing Android and iOS projects or you can create a whole new app from scratch. React primitives render to native platform UI, meaning your app uses the same native platform APIs other apps do. Many platforms, one React. Create platform-specific versions of components so a single codebase can share code across platforms. With React Native, one team can maintain two platforms and share a common technology—React. React Native lets you create truly native apps and doesn't compromise your users' experiences. It provides a core set of platform agnostic native components like View, Text, and Image that map directly to the platform’s native UI building blocks.
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    Flask

    Flask

    Flask

    Flask is a lightweight WSGI web application framework. It is designed to make getting started quick and easy, with the ability to scale up to complex applications. It began as a simple wrapper around Werkzeug and Jinja and has become one of the most popular Python web application frameworks. Flask offers suggestions, but doesn't enforce any dependencies or project layout. It is up to the developer to choose the tools and libraries they want to use. There are many extensions provided by the community that make adding new functionality easy.
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    Phoenix Framework

    Phoenix Framework

    Phoenix Framework

    Build rich, interactive web applications quickly, with less code and fewer moving parts. Join our growing community of developers using Phoenix to craft APIs, HTML5 apps and more, for fun or at scale. Interact with users and know who is connected right now, across one or dozens of nodes, by using our built-in Channels and Presence technologies. Or try LiveView for a refreshing new way to develop real-time apps without the client-side complexities. At its core, Phoenix is a rock-solid web framework that improves the tried and true Model-View-Controller (MVC) architecture with a fresh set of functional ideas. Phoenix puts the focus on your business domain, bringing you immediate productivity and long-term code maintainability.
    Starting Price: Free
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    Appium

    Appium

    The JS Foundation

    Appium is an open source test automation framework for use with native, hybrid and mobile web apps. It drives iOS, Android, and Windows apps using the WebDriver protocol. Appium is built on the idea that testing native apps shouldn't require including an SDK or recompiling your app. And that you should be able to use your preferred test practices, frameworks, and tools. Appium is an open source project and has made design and tool decisions to encourage a vibrant contributing community. Appium aims to automate any mobile app from any language and any test framework, with full access to back-end APIs and DBs from test code. Write tests with your favorite dev tools using all the above programming languages, and probably more (with the Selenium WebDriver API and language-specific client libraries).
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    Titanium SDK

    Titanium SDK

    Titanium SDK

    Write in JavaScript, and run natively everywhere. Titanium lets you develop cross-platform native mobile applications and build great mobile experiences using JavaScript. Access your application's hundreds of native UI and non-visual components (such as networks and media APIs). Easily include third-party modules in your apps with Titanium's wide selection of community modules and premium support integrations. The Titanium SDK helps you build native cross-platform mobile applications using JavaScript and the Titanium API, which abstracts the native APIs of the mobile platforms. Titanium empowers you to create immersive, full-featured applications, featuring over 80% code reuse across mobile apps. TiDev licenses Titanium under the OSI-approved Apache Public License (Version 2) and is free for personal and commercial use. Create a basic UI, manage event handling and learn about animations, gestures, and orientation modes.
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    Swoole

    Swoole

    Swoole

    Powering the next-generation microservices and applications. Build high-performance, scalable, concurrent TCP, UDP, Unix Socket, HTTP, GRPC services with PHP and easy-to-use coroutine, fibers API. Write your next scalable async application with PHP coroutines and fibers. Compared with other async programming frameworks or software such as Nginx, Tornado, and Node.js, Swoole is a complete async solution that has built-in support for async programming via fibers/coroutines, a range of multi-threaded I/O modules (HTTP server, GRPC, process pools) and support for popular PHP clients like PDO for MySQL, Redis, and CURL. You can use sync or async, coroutine, or fiber API to write the applications or create thousands of lightweight fibers within one Linux process. Swoole enhances the efficiency of your PHP applications and brings you out of the traditional stateless model, enabling you to focus on the development of innovative products at a high scale.
    Starting Price: Free
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    Ktor

    Ktor

    Ktor

    Create asynchronous client and server applications. Anything from microservices to multiplatform HTTP client apps in a simple way. Open Source, free, and fun! Ktor is built from the ground up using Kotlin and Coroutines. You get to use a concise, multiplatform language, as well as the power of asynchronous programming with an intuitive imperative flow. Ktor allows you to use only what you need, and to structure your application the way you need it. In addition, you can also extend Ktor with your own plugin very easily. Brought to you by JetBrains, creators of IntelliJ IDEA, Kotlin, and more. Ktor is not only used by our customers but also internally at JetBrains. In addition, you have top-notch tooling support!
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    PHPixie

    PHPixie

    PHPixie

    PHPixie is easy to learn and does not rely on automatic; you will always be in charge of what's happening. Designed for speed since first release and proven by independent benchmarks. Built using components that can be used without the framework. Linear execution flow, no static code, and low coupling. Reuse and share your code via Composer as self-contained bundles. Never find yourself in an event hell ever again as event use is avoided. Database components support working with MongoDB out of the box. Designed from scratch according to SOLID principles and industry standards. PHPixie started as a micro framework and has gradually grown to be one of the most popular full-stack PHP frameworks while retaining its high performance. This is in part because of the strict architecture that avoids common pitfalls such as reliance on static methods, global scope, singletons, and other antipatterns, thus also ensuring that the code is easy to read, debug, extend, and test.
    Starting Price: Free
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    Kaizen Framework

    Kaizen Framework

    Virtual Splat Software

    Kaizen Framework is a low code, rapid application development tool. You can make web application in minutes. It will help you to cut development cost and dependency on developers. No need to write code, no compilation need, no downtime to users. And finally, as the name says "Kaizen", we are constantly updating the framework to make sure that YOU make more money in software development projects. Among many other low-code frameworks, Kaizen is a mature framework that has proven its strength by delivering a variety of applications for different industries. It's constantly evolving for the last 15+ years, with projects already being delivered in 70+ industries with around 500+ projects successfully executed, and very practical solutions. Also, it's easy to learn and deploy and you can host the application wherever you want. The kaizen framework has advanced features compared to other frameworks.
    Starting Price: $10 USD per user per day
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    Yeoman

    Yeoman

    Yeoman

    Get started and then find a generator for your web app. Generators are available for Angular, Backbone, React, Polymer, and over 5600+ other projects. Yeoman helps you to kickstart new projects, prescribing best practices and tools to help you stay productive. To do so, we provide a generator ecosystem. A generator is basically a plugin that can be run with the 'yo' command to scaffold complete projects or useful parts. Through our official Generators, we promote the "Yeoman workflow". This workflow is a robust and opinionated client-side stack, comprising tools and frameworks that can help developers quickly build beautiful web applications. We take care of providing everything needed to get started without any of the normal headaches associated with a manual setup. With a modular architecture that can scale out of the box, we leverage the success and lessons learned from several open-source communities to ensure that developers use it as intelligently as possible.
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    Smart GWT

    Smart GWT

    Isomorphic Software

    Smart GWT Combines the industry's richest set of GWT UI components with a Java server framework to provide an end-to-end solution for building business web applications. Using the power of Google Web Toolkit (GWT), you can build a cutting edge HTML5/Ajax UI in standard Java. Because your Java code runs as JavaScript inside the browser, you can easily build high-productivity UIs that respond instantly to users, and eliminate the incessant server round-trips typical of server-centric technologies like JSF, ZK, or Vaadin. Other "multi-device" technologies actually require writing an entirely separate mobile UI with a different set of components. SmartGWT is different. Even if you know nothing about mobile development, your Smart GWT application supports mobile. Device-aware components automatically switch appearance and behavior to best suit the size of the device, and to provide a better experience for touch screens.
    Starting Price: $745 per developer
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    Webix

    Webix

    Webix

    JavaScript UI library and framework for speeding up web development. JS Framework for cross-platform web Apps development 102 UI widgets and feature-rich CSS / HTML5 JavaScript controls. Save at least 3000+ development hours by using ready-made widgets and UI controls. Develop Web UI 30% faster. We have accumulated the best design ideas. We have meticulously considered UX of each Webix component for five conceptual designs. Our support service specialists know everything about our library and can help you solve any problem. We also have an official support forum where you can discuss issues with our developers. By using Webix JS framework you receive an elegant and lightweight code based on object-oriented programming concepts. Associate your project with jQuery JavaScript library, MVC frameworks AngularJS, React, Vue.js, Backbone.js, third party UI extensions.
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    Windows Forms

    Windows Forms

    Microsoft

    Welcome to the Desktop Guide for Windows Forms, a UI framework that creates rich desktop client apps for Windows. The Windows Forms development platform supports a broad set of app development features, including controls, graphics, data binding, and user input. Windows Forms features a drag-and-drop visual designer in Visual Studio to easily create Windows Forms apps. Windows Forms is a UI framework for building Windows desktop apps. It provides one of the most productive ways to create desktop apps based on the visual designer provided in Visual Studio. Functionality such as drag-and-drop placement of visual controls makes it easy to build desktop apps. With Windows Forms, you develop graphically rich apps that are easy to deploy, update, and work while offline or while connected to the internet. Windows Forms apps can access the local hardware and file system of the computer where the app is running.
    Starting Price: Free
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    ADO.NET Data Providers
    dotConnect is an enhanced data connectivity solution built over ADO.NET architecture and a development framework with a number of innovative technologies. dotConnect includes high-performance data providers for the major databases and popular cloud applications and offers a complete solution for developing data-related applications and web sites. dotConnect can be used in all areas of modern application development: web applications and services, windows forms applications, mobile and enterprise development. dotConnect providers support such ORMs as Entity Framework, Entity Framework Core, NHibernate and LinqConnect. The providers come bundled with their own visual designer for ORM models - Entity Developer. dotConnect ADO.NET providers for databases and cloud applications, such as Oracle, MySQL, PostgreSQL, SQLite, Salesforce, Dynamics CRM, SugarCRM, Zoho CRM, QuickBooks, FreshBooks, MailChimp, etc.
    Starting Price: $99.95/one-time/user
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    Micronaut

    Micronaut

    Micronaut Framework

    Your application startup time and memory consumption aren’t bound to the size of your codebase, resulting in a monumental leap in startup time, blazing fast throughput, and a minimal memory footprint. When building applications with reflection-based IoC frameworks, the framework loads and caches reflection data for every bean in the application context. Built-in cloud support including discovery services, distributed tracing, and cloud runtimes. Quick configuration of your favorite data-access layer and the APIs to write your own. Realize benefits quickly by using familiar annotations in the way you are used to. Easily spin up servers and clients in your unit tests and run them instantaneously. Provides a simple, compile-time, aspect-oriented programming API that does not use reflection.
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    getcss

    getcss

    getcss

    getcss - An intuitive CSS framework. Create responsive web apps with getcss. It's simple, easy to use, free, and open source. Features: * Accelerate your development - Write less, get more * Zero dependencies * Latest technologies - Supports latest browsers, HTML5, CSS3 * Easy to learn, easy to use - as easy as 1-2-3 * Free and Open Source - Develop for yourself or your client * Responsive User Interface - Developed with mobile first approach * Media queries and Flexbox based.
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    FuelPHP

    FuelPHP

    FuelPHP

    The Fuel PHP framework is a fast, simple, and flexible PHP 5.4+ framework, born from the best ideas of other frameworks, with a fresh start. It was born out of the frustrations people have with the currently available frameworks and developed with support from a community of developers. FuelPHP is extremely portable, works on almost any server, and prides itself on clean syntax. FuelPHP is an MVC (Model View Controller) framework that was designed from the ground up to have full support for HMVC as part of its architecture. But we didn't stop there, we also added ViewModels (also known as presentation models) into the mix which gives you the option to add a powerful layer between the controller and the view. FuelPHP also supports a more router-based approach where you might route directly to a closure which deals with the input URI, making the closure the controller and giving it control of further execution.
    Starting Price: Free