Alternatives to Windows Presentation Foundation (WPF)
Compare Windows Presentation Foundation (WPF) alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Windows Presentation Foundation (WPF) in 2026. Compare features, ratings, user reviews, pricing, and more from Windows Presentation Foundation (WPF) competitors and alternatives in order to make an informed decision for your business.
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1
XAML
Microsoft
XAML is a declarative markup language. As applied to the .NET Core programming model, XAML simplifies creating a UI for a .NET Core app. You can create visible UI elements in the declarative XAML markup, and then separate the UI definition from the run-time logic by using code-behind files that are joined to the markup through partial class definitions. XAML directly represents the instantiation of objects in a specific set of backing types defined in assemblies. This is unlike most other markup languages, which are typically an interpreted language without such a direct tie to a backing type system. XAML enables a workflow where separate parties can work on the UI and the logic of an app, using potentially different tools. When represented as text, XAML files are XML files that generally have the .xaml extension. The files can be encoded by any XML encoding, but encoding as UTF-8 is typical.Starting Price: Free -
2
.NET MAUI
Microsoft
.NET Multi-platform App UI (.NET MAUI) is a framework for building modern, multi-platform, natively compiled iOS, Android, macOS, and Windows apps using C# and XAML in a single codebase. .NET MAUI uses the latest, modern technologies for building native apps on Android, iOS, macOS, and Windows abstracting them into one common framework built on .NET 6. Native apps look and feel like the operating system on which they belong by default and layouts are fully adapted to each device automatically with no additional code. Platform APIs are available directly from C# to access over 60 platform features from a single cross-platform API including access to things like isolated storage, sensors, geolocation, camera, and a whole lot more with no compromises.Starting Price: Free -
3
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 -
4
CodeRush
DevExpress
Try your first CodeRush feature right now and see instantly just how powerful it is. Refactoring for C#, Visual Basic, and XAML, with the fastest test .NET runner available, next generation debugging, and the most efficient coding experience on the planet. Quickly find symbols and files in your solution and easily navigate to code constructions related to the current context. CodeRush includes the Quick Navigation and Quick File Navigation features, which make it fast and easy to find symbols and open files. Using the Analyze Code Coverage feature, you can discover what parts of your solution are covered by unit tests, and find the at-risk parts of your application. The Code Coverage window shows percentage of statements covered by unit tests for each namespace, type, and member in your solution.Starting Price: $49.99 one time payment -
5
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 -
6
WinUI
Microsoft
The Windows UI Library (WinUI) is a native user experience (UX) framework for both Windows desktop and UWP applications. By incorporating the Fluent Design System into all experiences, controls, and styles, WinUI provides consistent, intuitive, and accessible experiences using the latest user interface (UI) patterns. With support for both desktop and UWP apps, you can build with WinUI from the ground up, or gradually migrate your existing MFC, WinForms, or WPF apps using familiar languages such as C++, C#, Visual Basic, and Javascript (via React Native for Windows).Starting Price: Free -
7
Livewire
Laravel
Livewire is a full-stack framework for Laravel that simplifies building dynamic interfaces without leaving the comfort of Laravel. It allows developers to create modern, reactive web applications using Laravel's Blade templating engine, eliminating the need for a separate frontend framework. Livewire components can communicate with each other through a global event system, enabling seamless interaction between components on the same page. The framework supports features like data binding, validation, and lifecycle hooks, facilitating the development of complex, dynamic interfaces. By handling frontend interactions on the server side, Livewire reduces the complexity of building dynamic UIs, allowing developers to focus on application logic without extensive JavaScript. Livewire renders the initial component output with the page. This way, it's SEO-friendly. When an interaction occurs, Livewire makes an AJAX request to the server with the updated data. -
8
Backbone.js
Backbone.js
Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing API over a RESTful JSON interface. When working on a web application that involves a lot of JavaScript, one of the first things you learn is to stop tying your data to the DOM. It's all too easy to create JavaScript applications that end up as tangled piles of jQuery selectors and callbacks, all trying frantically to keep data in sync between the HTML UI, your JavaScript logic, and the database on your server. For rich client-side applications, a more structured approach is often helpful. With Backbone, you represent your data as Models, which can be created, validated, destroyed, and saved to the server.Starting Price: Free -
9
Alpine.js
Alpine.js
Alpine is a rugged, minimal tool for composing behavior directly in your markup. Think of it like jQuery for the modern web. Plop in a script tag and get going. Declare a new Alpine component and its data for a block of HTML. Dynamically set HTML attributes on an element. Prevent a block of HTML from being initialized by Alpine. Hide a block of HTML until after Alpine is finished initializing its contents. Reference elements directly by their specified keys using the magic property. Execute a script each time one of its dependencies change. Run code when an element is initialized by Alpine.Starting Price: Free -
10
Sciter
Sciter
Sciter brings a stack of web technologies to desktop UI development. Web designers, and developers, can reuse their experience and expertise in creating modern-looking desktop applications. Various GUI frameworks offer different UI declaration and styling languages, such as QML and XAML (Microsoft WPF). On the contrary, Sciter allows the use of time-proven, robust, and flexible HTML and CSS for GUI definition and GPU-accelerated rendering. In almost 10 years, the Sciter UI engine has become the secret weapon of success for some of the most prominent antivirus products on the market, Norton Antivirus and Internet Security, Comodo Internet Security, ESET Antivirus, BitDefender Antivirus, and others. The use of HTML/CSS has allowed their UI to stay in touch with modern GUI trends throughout all these years and will continue to well into the future. Sciter Engine is a single, compact DLL of 5+ Mb in size.Starting Price: $310 one-time payment -
11
Stack
Lost Tech
A must-have tool for large screens or multiple monitors. Stack is a productivity tool, that helps move windows around. Divide screens into arbitrary zones. Quickly move windows between zones. Customizable hotkeys and mouse drag. Group windows into tabbed areas. Stack vertically or horizontally within a zone. High DPI support and highly customizable layout, based on XAML. With v2.1 we are adding an ability to create and share custom widgets, that can be put on Stack layouts. The initial release of Stack v2.1 contains a single sample widget, and a small amount of composable tools, that enable the creation of more complicated data-rich widgets inline inside your layouts. Stack can now automatically assign most newly opened windows to their closest zone. You can now change which mouse button is used to drag windows between zones. We've added an ability to assign hotkey combinations to move the active window to the zone.Starting Price: $5.86 one-time payment -
12
UIkit
UIkit
Create websites on the fly with the drag and drop page builder. It generates perfect UIkit markup, tailored for your needs. Customize every aspect of UIkit visually, build and arrange your content, all in one comprehensive and intuitive interface. Build pages with ready-to-use elements made from UIkit components, like buttons, cards, accordions and much more. Modify the visual appearance of your site – including colors, fonts, margins and other style-related properties – with a sophisticated style customizer for UIkit.Starting Price: Free -
13
Vue.js
Vue.js
Builds on top of standard HTML, CSS and JavaScript with intuitive API and world-class documentation. Truly reactive, compiler-optimized rendering system that rarely requires manual optimization. A rich, incrementally adoptable ecosystem that scales between a library and a full-featured framework. Vue is a JavaScript framework for building user interfaces. It builds on top of standard HTML, CSS and JavaScript, and provides a declarative and component-based programming model that helps you efficiently develop user interfaces, be it simple or complex. Vue extends standard HTML with a template syntax that allows us to declaratively describe HTML output based on JavaScript state. Vue automatically tracks JavaScript state changes and efficiently updates the DOM when changes happen. Vue is a framework and ecosystem that covers most of the common features needed in frontend development. -
14
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 -
15
EximiousSoft Banner Maker
EximiousSoft
The banner application runs as a great graphic-designed program for creating web-based or printable banner ads. It is full-featured with good design tools and a fast way to build high-quality banner images, provides a WYSIWYG interface for the manipulation of vector graphics, allowing you to express yourself freely. The program offers high-quality 2000+ ready-made professional banner templates, 500+ pre-designed clip arts & 5000+ vector symbols, and amazing rendering filters. All of them help you to create stunning business banner ads for printing with high resolution. With it, you can visually design any web-based banners, buttons, headers, etc. graphics, and supports to save as SVG/EPS/PDF/EMF/WMF/PNG, etc. file format. It is a great application for creating GIF banner ads. web buttons and headers etc. web graphics. It has all essential vector-based drawing tools and enables you to edit web graphics with full image painted tools and supports layer editing strongly.Starting Price: $59.95 one-time payment -
16
Slim Framework
Slim Framework
Slim is an ideal tool to create APIs that consume, repurpose, or publish data. Slim is also a great tool for rapid prototyping. Heck, you can even build full-featured web applications with user interfaces. More importantly, Slim is super fast and has very little code. You don’t always need a kitchen-sink solution like Symfony or Laravel. These are great tools, for sure. But they are often overkill. Instead, Slim provides only a minimal set of tools that do what you need and nothing else. First, you need a web server like Nginx or Apache. A Slim app contains routes that respond to specific HTTP requests. Each route invokes a callback and returns an HTTP response. To get started, you first instantiate and configure the Slim application. Next, you define your application routes. -
17
React
React
React makes it painless to create interactive UIs. Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes. Declarative views make your code more predictable and easier to debug. Build encapsulated components that manage their own state, then compose them to make complex UIs. Since component logic is written in JavaScript instead of templates, you can easily pass rich data through your app and keep state out of the DOM. We don’t make assumptions about the rest of your technology stack, so you can develop new features in React without rewriting existing code. React components implement a render() method that takes input data and returns what to display. This example uses an XML-like syntax called JSX. Input data that is passed into the component can be accessed by render() via this.props.Starting Price: Free -
18
Nitric
Nitric
Nitric is an open source, cloud-agnostic backend framework that enables developers to declare infrastructure as code and automate deployments using pluggable plugins. It supports multiple languages, including JavaScript, TypeScript, Python, Go, and Dart. Key features include defining APIs (REST, HTTP), serverless functions, routing, authentication/authorization (OIDC-compatible), storage (object/file storage, signed URLs, bucket events), databases (e.g., managed Postgres with migrations), messaging (queues, topics, pub/sub), websockets, scheduled tasks, and secrets management. Nitric integrates with tools like Terraform or Pulumi, or lets you write your own plugins, and works with major cloud providers (AWS, Azure, Google Cloud). It also supports local development with simulated cloud environments so you can prototype, test, and iterate without incurring cloud cost. The framework emphasizes declarative security, resource access management, and portability.Starting Price: Free -
19
Phalcon
Phalcon
A full-stack PHP framework delivered as a C-extension. Its innovative architecture makes Phalcon the fastest PHP framework ever built. Developers do not need to know C to use Phalcon. Its functionality is exposed as PHP classes and interfaces under the Phalcon namespace, ready to be used. Zephir/C extensions are loaded together with PHP one time on the web server's daemon start process. Classes and functions provided by the extension are ready to use for any application. The code is compiled and isn't interpreted because it's already compiled to a specific platform and processor. Thanks to its low-level architecture and optimizations Phalcon provides the lowest overhead for MVC-based applications. Build single and multi-module applications with ease and pleasure. Using the file structure, scheme, and patterns you already know. Writing REST servers and applications has never been easier, with no boilerplate, and simple services that fit in one file.Starting Price: Free -
20
Echo
Echo
High-performance, extensible, minimalist Go web framework. Highly optimized HTTP router with zero dynamic memory allocation which smartly prioritizes routes. Build robust and scalable RESTful API, easily organized into groups. Automatically install TLS certificates from Let's Encrypt. HTTP/2 support improves speed and provides a better user experience. Many built-in middleware to use, or define your own. Middleware can be set at root, group, or route level. Data binding for HTTP request payload, including JSON, XML or form data. API to send a variety of HTTP responses, including JSON, XML, HTML, file, attachment, inline, stream, or blob. Template rendering using any template engine. Customized central HTTP error handling. Easily extendable API. Optimized HTTP router which smartly prioritizes routes. Build robust and scalable RESTful APIs. Extensible middleware framework. Define middleware at root, group, or route level Data binding for JSON, XML, and form payload.Starting Price: Free -
21
Foundation
Foundation Framework
A Framework for any device, medium, and accessibility. Foundation is a family of responsive front-end frameworks that make it easy to design beautiful responsive websites, apps and emails that look amazing on any device. Foundation is semantic, readable, flexible, and completely customizable. We’re constantly adding new resources and code snippets, including these handy HTML templates to help get you started! Everything is semantic. You can have the cleanest markup without sacrificing the utility and speed of Foundation. You can build for small devices first. Then, as devices get larger and larger, layer in more complexity for a complete responsive design. You can customize your build to include or remove certain elements, as well as define the size of columns, colors, font size and more. Millions of designers and developers depend on Foundation. We have business support, training and consulting to help grow your product or service.Starting Price: Free -
22
Aurelia
Aurelia
Aurelia's standards-based, unobtrusive style makes it the only framework that empowers you to build components using vanilla JavaScript or TypeScript. If you know modern JS and HTML, there's little more to learn to build even the most complex apps. At the core of Aurelia is a high-performance, reactive system, capable of batching DOM updates in a way that leaves other frameworks, and their virtual DOMs, in the dust. Experience consistent, scalable performance, no matter how complex your UI. Aurelia enables powerful reactive binding to any object. By using adaptive techniques Aurelia selects the most efficient way to observe each property in your model and automatically syncs your UI and your state with best-in-class performance. State management, internationalization and validation - all official plugins from the core team. CLI, VS Code plugin, and Chrome debugger - optional tools to enhance development.Starting Price: Free -
23
Nue
Nue JS
Nue is a minimalist, standards-based web development environment and framework that emphasizes progressive enhancement, separation of concerns, and semantic web design to simplify building modern websites and web applications. It combines a static site generator with support for both multi-page and single-page applications, enabling developers to use extended Markdown, HTML first UI assembly, URL-first state management, and modern CSS for layout and styling while keeping markup clean and optimized for accessibility and SEO. Its entire ecosystem is extremely small in size (about 1MB) yet offers features like universal hot reload, SPA development, dynamic islands, view transitions, content collections, TypeScript support, CSS inlining, API routing, and full-stack previews without heavy tooling or complex configuration. Nue separates content, layout, and logic so designers, content strategists, and developers can work independently. -
24
Lit
Lit
Building on top of the Web Components standards, Lit adds just what you need to be happy and productive: reactivity, declarative templates and a handful of thoughtful features to reduce boilerplate and make your job easier. Every Lit feature is carefully designed with web platform evolution in mind. Weighing in at around 5 KB (minified and compressed), Lit helps keep your bundle size small and your loading time short. And rendering is blazing fast, because Lit touches only the dynamic parts of your UI when updating — no need to rebuild a virtual tree and diff it with the DOM. Every Lit component is a native web component, with the superpower of interoperability. Web components work anywhere you use HTML, with any framework or none at all. This makes Lit ideal for building shareable components, design systems, or maintainable, future-ready sites and apps.Starting Price: Free -
25
Solid
SolidJS
Solid stands on the shoulders of giants, particularly in React and Knockout. If you've developed using React Hooks, Solid will come naturally to you. In fact, more natural, since the Solid model is simpler, without the rules of the Hooks. Each component is executed once and it is the Hooks and bindings that are executed as many times as the dependencies are updated. Solid follows the same philosophy as React with one-way data flow, read/write segregation, and immutable interfaces. At the same time, it has a completely different implementation by dispensing with the Virtual DOM.Starting Price: Free -
26
QML
Qt
QML is a declarative language that allows user interfaces to be described in terms of their visual components and how they interact and relate with one another. It is a highly readable language that was designed to enable components to be interconnected in a dynamic manner, and it allows components to be easily reused and customized within a user interface. Using the QtQuick module, designers and developers can easily build fluid animated user interfaces in QML, and have the option of connecting these user interfaces to any back-end C++ libraries. QML is a user interface specification and programming language. It allows developers and designers alike to create highly performant, fluidly animated and visually appealing applications. QML offers a highly readable, declarative, JSON-like syntax with support for imperative JavaScript expressions combined with dynamic property bindings.Starting Price: Free -
27
Nevron Open Vision for .NET
Nevron Software
Nevron Open Vision for .NET is a suite of advanced components for .NET application development under WinForms, WPF, and Xamarin.Mac. All the components in the suite are cross platforms. NOV changes how you develop with .NET as with it you can write UI code that runs on Windows and Mac OS X without any modifications. Further, NOV provides a consistent window-less UI experience that provides fast and efficient management of UI resources, flicker-free, and 4K-enabled interfaces. All controls in the suite are GPU accelerated. Besides quality common UI controls (buttons, checkboxes, list boxes, tree view, etc.) NOV also includes class-leading heavy controls such as Barcode, Chart, Diagram, Gauge, Grid, Rich-Text Editor, and Scheduler. All controls in the suite are implemented both as native NOV controls and as platform-specific - WinForm, WPF, or Xamarin. Mac controls, which allows you to simply drag and drop them to your forms. All common UI controls in the suite are completely free.Starting Price: $ 1496.00 -
28
Angular
Angular
Learn one way to build applications with Angular and reuse your code and abilities to build apps for any deployment target. For web, mobile web, native mobile and native desktop. Achieve the maximum speed possible on the Web Platform today, and take it further, via Web Workers and server-side rendering. Angular puts you in control over scalability. Meet huge data requirements by building data models on RxJS, Immutable.js or another push-model. Build features quickly with simple, declarative templates. Extend the template language with your own components and use a wide array of existing components. Get immediate Angular-specific help and feedback with nearly every IDE and editor. All this comes together so you can focus on building amazing apps rather than trying to make the code work. From prototype through global deployment, Angular delivers the productivity and scalable infrastructure that supports Google's largest applications.Starting Price: Free -
29
Axon Framework
AxonIQ
Purpose-built and open source, Axon Framework provides the building blocks for modern applications using event-driven architecture (EDA) powered by domain-driven design (DDD), event sourcing, and command query responsibility separation (CQRS). Our proven technology allows your team to evolve your application to reach business demands without unnecessary complexity.Starting Price: FREE -
30
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. -
31
Adobe Illustrator
Adobe
Adobe Illustrator is an industry-standard vector graphic design software solution used to create beautiful logos, drawings, icons, typography, and illustrations for web, print, video, and mobile. Purpose-built for photographers, designers, students, and small to medium-size businesses, Adobe Illustrator enables users to create graphic designs for brand corporations, general merchandise packagings, billboards, bus wraps, clothing lines, and virtually any business or industry. The solution comes with thousands of royalty-free stock art and can be integrated with video and animation apps such as Premiere Pro, Animate CC, and After Effects.Starting Price: $9.99/month/user -
32
Rio
Rio
Rio is an open source Python framework that enables developers to build modern web and desktop applications entirely in Python. Inspired by frameworks like React and Flutter, Rio introduces a declarative UI model where components are defined as Python data classes with a build() method, allowing for reactive state management and seamless UI updates. It includes over 50 built-in components adhering to Google's Material Design, facilitating the creation of professional-grade interfaces. Rio's layout system is Pythonic and intuitive, calculating each component's natural size before distributing available space, eliminating the need for traditional CSS. Developers can run applications locally or in the browser with the backend powered by FastAPI and communication handled via WebSockets.Starting Price: Free -
33
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. -
34
CorelDRAW
Alludo
Designed with your productivity in mind, CorelDRAW® Graphics Suite is trusted by millions of graphics pros and design teams around the globe for endless creativity with no time wasted. This fully-loaded toolkit for professional vector illustration, layout, photo editing, typography, and collaboration is equal parts creative and efficient: the perfect recipe for delivering breathtaking design projects, fast, on Windows, Mac, iPad, web, and mobile. Our latest subscription-only update delivers a reimagined image adjustments workflow, building on a real-time, non-destructive photo editing experience, and new design templates for more creative possibilities. Be successful sooner with an optimized, personalized in-app learning experience, and time-saving tweaks to your favorite features. Affordable and ever-advancing, CorelDRAW Graphics Suite is committed to providing ongoing value to subscribers. -
35
Electron
Electron
Thousands of organizations spanning all industries use Electron to build cross-platform software. Build cross-platform desktop apps with JavaScript, HTML, and CSS. If you can build a website, you can build a desktop app. Electron is a framework for creating native applications with web technologies like JavaScript, HTML, and CSS. It takes care of the hard parts so you can focus on the core of your application. Electron uses Chromium and Node.js so you can build your app with HTML, CSS, and JavaScript. Electron is an open-source project maintained by the OpenJS Foundation and an active community of contributors. Compatible with Mac, Windows, and Linux, Electron apps build and run on three platforms. To get started with Electron, check out the resources available. Learn how to wrap your web app with Electron, access all the APIs, and generate installers. Also, Electron Fiddle lets you create and play with small Electron experiments.Starting Price: Free -
36
SvelteKit
SvelteKit
SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. It addresses common development challenges by providing solutions for routing, server-side rendering, data fetching, service workers, TypeScript integration, and more. SvelteKit apps are server-rendered by default, offering excellent first-load performance and SEO benefits, but can transition to client-side navigation to enhance user experience. The framework is designed to grow with developers, allowing them to start simple and add new features as needed. SvelteKit leverages Vite for a fast and feature-rich development experience, including hot module replacement. In short, Svelte is a way of writing user interface components, like a navigation bar, comment section, or contact form, that users see and interact with in their browsers. The Svelte compiler converts your components to JavaScript that can be run to render the HTML for the page and to CSS that styles the page.Starting Price: Free -
37
FastAPI
FastAPI
FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.7+ based on standard Python type hints. Fast: Very high performance, on par with NodeJS and Go (thanks to Starlette and Pydantic). One of the fastest Python frameworks available. Minimize code duplication, multiple features from each parameter declaration. -
38
jQuery
jQuery
jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. If you're new to jQuery. Return a collection of matched elements either found in the DOM based on passed argument(s) or created by passing an HTML string. All the aspects of the API that were deprecated in the corresponding version of jQuery. These methods get and set DOM attributes of elements.Starting Price: Free -
39
NiceGUI
NiceGUI
NiceGUI is an open source Python library that enables developers to create web-based graphical user interfaces (GUIs) using only Python code. It provides a gentle learning curve while still offering the option for advanced customizations. NiceGUI follows a backend-first philosophy: it handles all the web development details, allowing developers to focus on writing Python code. This makes it ideal for a wide range of projects, including short scripts, dashboards, robotics projects, IoT solutions, smart home automation, and machine learning. The framework is built on FastAPI for backend operations, Vue.js for frontend interaction, and Tailwind CSS for styling. Developers can create buttons, dialogs, Markdown, 3D scenes, plots, and more, all within a Python environment. NiceGUI supports real-time interactivity through WebSocket connections, enabling instant updates in the browser without page reloads. It offers a variety of components and layout options, such as rows, columns, etc.Starting Price: Free -
40
NW.js
NW.js
NW.js (previously known as node-webkit) lets you call all Node.js modules directly from DOM and enables a new way of writing applications with all web technologies. A new way of writing native applications using web technologies, HTML5, CSS3, and WebGL. Full support for the features in the browser. Complete support for Node.js APIs and all third-party modules. Call Node.js modules directly from the DOM and web workers. Available on Linux, Mac OS X and Windows. NW.js is based on Chromium and Node.js. Further, you can easily package a web application into a native application. It enables endless possibilities for writing apps. Easy to use, native UI library, frameless window, packaging and distribution, compatible with npm, debugger support, a rich documentation, kiosk mode, file dialogs, and media. Supports web components, drag & drop, WebGL, WebRTC, datalist, and CSS3. NW.js is also data persistent.Starting Price: Free -
41
GRASS GIS
GRASS
GRASS GIS (Geographic Resources Analysis Support System) is a free and open-source Geographic Information System (GIS) software suite utilized for geospatial data management and analysis, image processing, graphics and map production, spatial modeling, and visualization. It supports raster, vector, and geospatial processing, enabling advanced modeling, data management, imagery processing, and time series analysis with a Python API, optimized for large-scale analysis. GRASS GIS is compatible with multiple operating systems, including OS X, Windows, and Linux, and can be accessed through a graphical user interface or integrated with other software such as QGIS. The software includes over 350 modules for rendering maps and images, manipulating raster and vector data, processing multispectral image data, and creating, managing, and storing spatial data. GRASS GIS is widely used in academic and commercial settings, as well as by governmental agencies.Starting Price: Free -
42
Ascalaph Designer
Agile Molecule
Ascalaph Designer is a general-purpose program for molecular dynamic simulations. Under a single graphical environment are represented as their own implementation of molecular dynamics as well as the methods of classical and quantum mechanics of popular programs. Molecular geometry optimization with conjugate gradient methods. Shows molecular models in separate windows. Each window has two cameras, which allow the model to be simultaneously visualized from two sides and in different graphic modes. The subwindow can be opened by dragging the splitter in the right corner of each graphical window. Clicking on an atom or bond with the left mouse button slightly changes their color and a brief info about the picked object appears in the status bar. The wire-frame style is convenient for large molecules, particularly, proteins. Drawing is very fast for this style. Finally, CPK wire frame combines the properties of several above styles.Starting Price: Free -
43
Wasp
Wasp, Inc.
Wasp is a full-stack web application framework that allows developers to build apps faster with less boilerplate code. It integrates React for frontend development, Node.js for backend, and Prisma for database management, enabling developers to focus on the essential parts of their app. The framework’s declarative syntax and simplified configuration mean that developers can describe their app's high-level structure in a .wasp file, and the system automatically handles much of the repetitive work, including routing, authentication, and API management. Wasp's goal is to simplify app development without sacrificing flexibility, making it ideal for building MVPs and production-ready applications.Starting Price: Free -
44
Helidon
Helidon
Helidon is a cloud-native, open‑source set of Java libraries for writing microservices that run on a fast web core powered by Netty. Helidon Níma is the first Java microservices framework based on virtual threads. Helidon is designed to be simple to use, with tooling and examples to get you going quickly. Since Helidon is simply a collection of Java libraries running on a fast Netty core, there is no extra overhead or bloat. Helidon supports MicroProfile and provides familiar APIs like JAX-RS, CDI, and JSON-P/B. Our implementation runs on our fast Helidon Reactive WebServer. Helidon Reactive WebServer provides a modern functional programming model and runs on top of Netty. Lightweight, flexible, and reactive, the Helidon WebServer provides a simple-to-use and fast foundation for your microservices. With support for health checks, metrics, tracing, and fault tolerance, Helidon has what you need to write cloud-ready applications that integrate with Prometheus, Jaeger/Zipkin, etc.Starting Price: Free -
45
jQuery Mobile
OpenJS Foundation
jQuery Mobile is an HTML5-based user interface system designed to make responsive websites and apps that are accessible on all smartphones, tablets, and desktop devices. jQuery Mobile framework takes the "write less, do more" mantra to the next level: Instead of writing unique applications for each mobile device or OS, the jQuery mobile framework allows you to design a single highly-branded responsive website or application that will work on all popular smartphone, tablet, and desktop platforms. We believe that your website or app should feel like your brand, not any particular OS. To make building highly customized themes easy, we've created ThemeRoller for mobile to make it easy to drag and drop colors and download a custom theme. For polished visuals without the bloat, we leverage CSS3 properties. We recommend using our tool to build a custom bundle that contains only the components you need.Starting Price: Free -
46
.NET
Microsoft
Free. Cross-platform. Open source. A developer platform for building all your apps. Build native apps for Android, iOS, macOS and Windows from a single codebase. You can write your .NET apps in C#, F#, or Visual Basic. Your skills, code, and favorite libraries apply anywhere you use .NET. You can learn more about what .NET can do with these free videos. .NET is open source and we are very thankful for the many contributions it receives from the community.Starting Price: Free -
47
FugroViewer
Fugro
FugroViewer is a robust, easy-to-use freeware designed to help users make the most of their geospatial data. We have developed it for use with various types of raster- and vector-based geospatial datasets, including data from photogrammetric, lidar, and IFSAR sources. FugroViewer 3.5 is available for download. FugroViewer now reads files up to six times larger, with improved graphics handling to decrease the rendering time of data and increase efficiency. FugroViewer supports the latest open file format for lidar data storage and delivery. Display elevation and terrain model data in standard ortho, 3D perspective, and cross-section/profile views. Display GPS time and RGB value, if the information is available. Color TINs by elevation using blue-to-red earth tone, or intensity values. Overlay imagery and vectors onto your 3D elevation and terrain datasets. Examine lidar point clouds by classification, flight line, return number, or source ID.Starting Price: Free -
48
Koa
Koa
Koa is a new web framework designed by the team behind Express, which aims to be a smaller, more expressive, and more robust foundation for web applications and APIs. By leveraging async functions, Koa allows you to ditch callbacks and greatly increase error handling. Koa does not bundle any middleware within its core, and it provides an elegant suite of methods that make writing servers fast and enjoyable. A Koa application is an object containing an array of middleware functions that are composed and executed in a stack-like manner upon request. Koa is similar to many other middleware systems that you may have encountered such as Ruby's Rack, Connect, and so on - however, a key design decision was made to provide high-level "sugar" at the otherwise low-level middleware layer. This improves interoperability, and robustness, and makes writing middleware much more enjoyable.Starting Price: Free -
49
MōBrowser
TeamDev
MōBrowser is an SDK for building modern and secure cross-platform desktop apps with HTML/CSS/JavaScript GUI. It includes many tools for generating a project from different templates, building, branding, packaging, signing and notarizing, making installers for macOS, Windows, and Linux, auto-updating apps, etc. With MōBrowser you can turn your website or web application into a desktop application, make desktop apps with modern HTML/CSS UI, make desktop apps with UI built using modern frontend frameworks such as React, Vue, Angular, etc.Starting Price: $128/user/month -
50
ReSharper
JetBrains
The Visual Studio Extension for .NET Developers. On-the-fly code quality analysis is available in C#, VB.NET, XAML, ASP.NET, ASP.NET MVC, JavaScript, TypeScript, CSS, HTML, and XML. You'll know right away if your code needs to be improved. Not only does ReSharper warn you when there's a problem in your code but it provides hundreds of quick-fixes to solve problems automatically. In almost every case, you can select the best quick-fix from a variety of options. Automated solution-wide code refactorings help you safely change your code base. Whether you need to revitalize legacy code or put your project structure in order, you can rely on ReSharper. You can instantly navigate and search through the whole solution. Jump to any file, type, or type member, or navigate from a specific symbol to its usages, base and derived symbols, or implementations.Starting Price: $12.90 per user per month
