Best Free Application Development Software - Page 10
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Compare the Top Free Application Development Software as of May 2026 - Page 10
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1
Azure API Management
Microsoft
Manage APIs across clouds and on-premises: In addition to Azure, deploy the API gateways side-by-side with the APIs hosted in other clouds and on-premises to optimize API traffic flow. Meet security and compliance requirements while enjoying a unified management experience and full observability across all internal and external APIs. Move faster with unified API management: Today's innovative enterprises are adopting API architectures to accelerate growth. Streamline your work across hybrid and multi-cloud environments with a single place for managing all your APIs. Help protect your resources: Selectively expose data and services to employees, partners, and customers by applying authentication, authorization, and usage limits. -
2
Fiddler
Progress Software
Capture all HTTP(S) traffic between your computer and the Internet with Telerik Fiddler HTTP(S) proxy. Inspect traffic, set breakpoints, and fiddle with requests & responses. Fiddler Everywhere is a web debugging proxy for macOS, Windows, and Linux. Capture, inspect, monitor all HTTP(S) traffic between your computer and the Internet, mock requests, and diagnose network issues. Fiddler Everywhere can be used for any browser, application, process. Debug traffic from macOS, Windows, or Linux systems and iOS or Android mobile devices. Ensure the proper cookies, headers, and cache directives are transferred between the client and server. Supports any framework, including .NET, Java, Ruby, etc. Mock or modify requests and responses on any website. It’s a quick and easy way to change the request and responses to test websites without changing code. Use Fiddler Everywhere to log all HTTP/S traffic between your computer and the Internet.Starting Price: $12 per user per month -
3
CodePen
CodePen
CodePen is a social development environment for front-end designers and developers. Build and deploy a website, show off your work, build test cases to learn and debug, and find inspiration. Find inspiration from 1.8 million+ front-end designers and developers. Browse and share work from world-class designers and developers in the front-end community. The CodePen Editor is highly customizable. There is autocomplete and Emmet for speed and accuracy. Plus you can set up smart defaults for starting new work. Completely customize the look of code demos on your own site. Change the look of your site? Just change the theme and all your Embedded Pens change too. Need to use an image in a Pen? No more awkwardly finding alternate hosting for it, you can drag-and-drop it right onto CodePen and we'll host it for you. And not just images! CSS, JSON files, SVGs, media files, whatever! Projects is the most powerful feature of CodePen.Starting Price: $8 per month -
4
Penpot
Kaleidos
Penpot is the free open-source design tool that allows true collaboration between designers and developers. Hand-off drama disappears, thanks to features like CSS Grid, Flex Layout and the Code Inspect tab. Designers can create stunning designs, interactive prototypes, design systems at scale, while developers enjoy ready-to-use code and make their workflow easy and fast.Starting Price: Free -
5
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.Starting Price: $15/mo -
6
Azure IoT Hub
Microsoft
Managed service for bidirectional communication between IoT devices and Azure. Enable highly secure and reliable communication between your Internet of Things (IoT) application and the devices it manages. Azure IoT Hub provides a cloud-hosted solution back end to connect virtually any device. Extend your solution from the cloud to the edge with per-device authentication, built-in device management, and scaled provisioning. Use device-to-cloud telemetry data to understand the state of your devices and define message routes to other Azure services—without writing any code. In cloud-to-device messages, reliably send commands and notifications to your connected devices and track message delivery with acknowledgement receipts. Automatically resend device messages as needed to accommodate intermittent connectivity. Azure IoT Central: Proof of concept isn’t your endgame. We’ll help you build industry-leading solutions with a hosted IoT application platform.Starting Price: $10 per IoT unit per month -
7
Corel Vector
Alludo
Corel Vector is a free full-featured vector graphic design app that works on ALL platforms. Unlock the full power of your creativity with fast and flexible tools tailored to professional designers. Discover a new world of creativity and precision vector tools. Create shapes, lines, points and give incredible form to your work. Find everything you need for UI Design. Create mock ups and wireframes using shared styles, symbols, anchors, and pages. From color and lighting adjustments to filters and blending, Corel Vector has the photo effects you are looking for to edit your images. Whether you’re working on graphics for marketing materials, websites, icons, UI design, presentations, or social media—or just like creating cool art—Corel Vector gives you all the power, precision, and flexibility you need to unleash your creativity.Starting Price: $69 per year -
8
Integrately
CompanyHub
Integrately helps you in automating your manual tasks in just a click. It is built for business, professionals and owners who wish to automate their processes quickly and easily. No need to hire coders! Just select your apps and choose from over 250K+ ready to use 1 click integrations and activate them and you are good to go! With Integrately, you can integrate apps like Salesforce, Google, Hubspot, and Facebook to move your data automatically and thus save your precious time and money. Search from 250,000+ fully ready integrations, and activate them in 1 click! Ready mappings, no steps to perform, nothing to learn, isn't that awesome? Send marketing leads to your CRM. Add your leads/purchases to spreadsheet. Update meetings in CRM & Google calendar. When Deal is won, notify via Email/Slack. Automatically create invoices in Quickbooks. Integrately has zero learning curve, you can connect your apps in next 5 minutes.Starting Price: $15 per month -
9
HTTP Toolkit
HTTP Toolkit
Skim through traffic with highlighting by content type, status & source, or use powerful filtering tools to precisely match the messages that matter to you. Examine the URL, status, headers & body of each request or response, with inline explanations & docs from MDN. Dig into message bodies with highlighting & auto formatting for JSON, HTML, JS, hex and others, all using the power of Monaco, the editor from Visual Studio Code. Precisely match requests, jump to them when they appear, and edit anything: the target URL, method, headers or body. Manually respond directly to requests as they arrive, or pass them upstream, and pause & edit the real response on the way back. Step through HTTP traffic request by request, or manually mock endpoints and errors. Create rules to match requests and respond with your own content, to quickly prototype against new endpoints or services.Starting Price: Free -
10
Qntrl
Qntrl
Qntrl is a business automation tool that assists in workflow management through the lens of a low-code interface and is loaded with practical tried-and-tested process templates to choose from. The platform enables process managers to build their own processes through drag-and-drop process mapping and customizable form builders for web and mobile. The process mapping UI is easy to learn and designed to enable anyone to build processes. Manage and create workflows, and even integrate different verticals in any operation. Cut back on trivial tasks, such as exporting huge data sheets, email threads, and more. Qntrl is partnered with 2,000+ users and has automated 15,000+ processes for companies like ITC, KPMG, AET, and IHS. They are the one-stop solution for enterprise and mid-level organizations who are looking to automate their processes.Starting Price: $7 per month -
11
Cohere
Cohere
Cohere is an enterprise AI platform that enables developers and businesses to build powerful language-based applications. Specializing in large language models (LLMs), Cohere provides solutions for text generation, summarization, and semantic search. Their model offerings include the Command family for high-performance language tasks and Aya Expanse for multilingual applications across 23 languages. Focused on security and customization, Cohere allows flexible deployment across major cloud providers, private cloud environments, or on-premises setups to meet diverse enterprise needs. The company collaborates with industry leaders like Oracle and Salesforce to integrate generative AI into business applications, improving automation and customer engagement. Additionally, Cohere For AI, their research lab, advances machine learning through open-source projects and a global research community.Starting Price: Free -
12
Ambassador
Ambassador Labs
Ambassador Edge Stack is a Kubernetes-native API Gateway that delivers the scalability, security, and simplicity for some of the world's largest Kubernetes installations. Edge Stack makes securing microservices easy with a comprehensive set of security functionality, including automatic TLS, authentication, rate limiting, WAF integration, and fine-grained access control. The API Gateway contains a modern Kubernetes ingress controller that supports a broad range of protocols including gRPC and gRPC-Web, supports TLS termination, and provides traffic management controls for resource availability. Why use Ambassador Edge Stack API Gateway? - Accelerate Scalability: Manage high traffic volumes and distribute incoming requests across multiple backend services, ensuring reliable application performance. - Enhanced Security: Protect your APIs from unauthorized access and malicious attacks with robust security features. - Improve Productivity & Developer Experience -
13
Niotron
India
A drag and drop builder to build android apps without any coding background or knowledge. Hey are you looking for the solutions or want to share your projects/ideas? Take a look at our amazing community. Our users are amazing and thanks to them, Our community is a really nice place to share your doubts, projects or suggestions related with Niotron. We’re excited to help you begin your app-building journey. On Niotron, anyone can easily create beautiful and powerful mobile apps, program logical functionality with drag & drop blocks, including ads to generate revenue, and upload apps to the Google Play Store. Hey are you looking for solutions or want to share your projects/ideas? Take a look at our amazing community. Our users are amazing and thanks to them, Our community is a really nice place to share your doubts, projects or suggestions related with Niotron.Starting Price: Free -
14
FlutterFlow
FlutterFlow
Easily build beautiful apps, connect data, and implement advanced functionality. Shareable links connected to live data make it easy to test and collect user feedback. Easily add team members to a project and manage project permissions. Work together on your project at the same time, this is great for agencies and companies. Save named versions and easily revert to previous versions. FlutterFlow is a web app that can be used from your browser. The Dashboard page helps you manage your projects in FlutterFlow. You can create, duplicate and delete your projects from this page. This page has links to various resources that can help you build apps using FlutterFlow. Your account information and plan details are also accessible from this page.Starting Price: $18 per month -
15
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 -
16
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.Starting Price: Free -
17
Mithril.js
Mithril.js
Mithril.js is a modern client-side JavaScript framework for building Single Page Applications. It's small (< 10kb gzip), fast and provides routing and XHR utilities out of the box. Mithril.js is used by companies like Vimeo and Nike, and open source platforms like Lichess. If you are an experienced developer and want to know how Mithril.js compares to other frameworks, see the framework comparison page. An easy way to try out Mithril.js is to include it from a CDN and follow this tutorial. It'll cover the majority of the API surface (including routing and XHR) but it'll only take 10 minutes. You can now update the label of the button by clicking the button. Since we used m.mount, you don't need to manually call m.render to apply the changes in the count variable to the HTML; Mithril.js does it for you.Starting Price: Free -
18
Java
Oracle
The Java™ Programming Language is a general-purpose, concurrent, strongly typed, class-based object-oriented language. It is normally compiled to the bytecode instruction set and binary format defined in the Java Virtual Machine Specification. In the Java programming language, all source code is first written in plain text files ending with the .java extension. Those source files are then compiled into .class files by the javac compiler. A .class file does not contain code that is native to your processor; it instead contains bytecodes — the machine language of the Java Virtual Machine1 (Java VM). The java launcher tool then runs your application with an instance of the Java Virtual Machine.Starting Price: Free -
19
cryptography
cryptography
cryptography includes both high-level recipes and low-level interfaces to common cryptographic algorithms such as symmetric ciphers, message digests, and key derivation functions. Encrypt with cryptography’s high-level symmetric encryption recipe. cryptography is broadly divided into two levels. One with safe cryptographic recipes that require little to no configuration choices. These are safe and easy to use and don’t require developers to make many decisions. The other level is low-level cryptographic primitives. These are often dangerous and can be used incorrectly. They require making decisions and having an in-depth knowledge of the cryptographic concepts at work. Because of the potential danger in working at this level, this is referred to as the “hazardous materials” or “hazmat” layer. These live in the cryptography.hazmat package, and their documentation will always contain an admonition at the top.Starting Price: Free -
20
.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 -
21
K.Explorer
Morphis Tech
A state-of-the-art AI that builds better software, cheaper and faster. K.Explorer is an AI powered Code Assistant trained on many millions of private corporate lines of code, for specific domains, and on billions of public and open-source lines of code for general purposes. Its code auto-completion features suggest code completions and entire function bodies as you type or as you search the engine for help. To make development faster and more agile it even supports Natural Language for programmers to get guidance while telling a text story about the code they want to write.Starting Price: Free -
22
ToolJet
ToolJet
Build complicated frontends without any experience in React, CSS, or even HTML. Drag and drop 35+ in-built UI components to build even complicated frontends. Adding new components, resizing them, adjusting position, changing colors, etc can be done using the visual app editor. Customize the component with in-built properties and styles without using a single line of code. Viewer for verifying current properties of components, queries, and global states of applications. ToolJet ships with its built-in database called ToolJet DB (built on top of PostgreSQL). You can also connect to external data sources such as databases ( PostgreSQL, MongoDB, MS SQL Server, Snowflake, BigQuery, etc ), API/GraphQL endpoints, SaaS tools ( Airtable, Stripe, Google Sheets, etc ), and cloud object storage services ( AWS S3, Google Cloud Storage and Minio ).Starting Price: Free -
23
Site Search ONE
ElectronArt Design Ltd
Site Search ONE WordPress Plugin provides a ‘no-code’ solution for professional search of Posts & Pages (up to 40,000 pages/posts). Facets & Filters use WordPress Categories, Tags & Custom Fields or Advanced Custom Fields (ACF) let site visitors’ ‘drill-down’ the search results. Sortable search results with highlighted hits-in-context on a snippet of surrounding text. Stemming, WordNet synonyms, Soundex. Search types: nested Boolean, All words, Any words. A Premium add-on plugin extends searching to Office docs including PDFs with hit-highlighting, user defined synonyms, search analytics and more. Site Search ONE plugin is free and open source, it requires a subscription to the Search Cloud One platform - this is a Search-as-a-Service providing a dtSearch Engine REST API . Free 30-day trial.Starting Price: $59/month -
24
XiMpLe
XiMpLe
A simple editor for XML and JSON files based on a grid table view with some unique functionalities. User doesn't need to care about xml or json rules. It's possible to compare and merge xml files in a grid view. There is a support for validating xml with XSD schema(s). It can be used also for splitting big xml files and joining them back together or as a simple text editor for large files. Commercial users are able to create and run scripts. It's very easy to copy/paste data from/to spreadsheet editor. Adjacent text editor supports big files and very long lines. No installation is required, one file (1.4 MB). Free for a non-commercial use. It should run on Win 7, 8, 10 and 11 (using .NET Framework 4.5).Starting Price: 30 euro/year/user -
25
BLACKBOX AI
BLACKBOX AI
BLACKBOX AI is an advanced AI-powered platform designed to accelerate coding, app development, and deep research tasks. It features an AI Coding Agent that supports real-time voice interaction, GPU acceleration, and remote parallel task execution. Users can convert Figma designs into functional code and transform images into web applications with minimal coding effort. The platform enables screen sharing within IDEs like VSCode and offers mobile access to coding agents. BLACKBOX AI also supports integration with GitHub repositories for streamlined remote workflows. Its capabilities extend to website design, app building with PDF context, and image generation and editing.Starting Price: Free -
26
Budibase
Budibase
At Budibase, we offer the best development experience with an obsessive focus on application design. Budibase enables everybody to design like professionals. Create apps that work perfectly across mobile, tablet, and desktop. And update the theme of your app with 2 clicks. Build powerful, custom forms for any scenario including multi-step forms, public forms, surveys, and more. Change your user interface based on app conditions. Ensure certain groups of people can only access certain screens. With our open source platform, application data never has to leave your infrastructure. Deploy via Kubernetes, Docker, Digital Ocean. Or choose the Budibase Cloud and let Budibase manage everything for you. Host with Budibase and let us manage everything for you - easiest and quickest way.Starting Price: $30 per month -
27
UNOY
UNOY
Unoy is a no-code platform that enables businesses and experts to digitize, automate, and scale their knowledge through the creation of Knowledge Apps (KAPPS). KAPPS streamline rules, regulations, and decisions, and allow organizations to deploy AI-powered virtual assistants to assist knowledge workers with repetitive tasks, freeing them to focus on more complex work. Unoys modular system makes it incredibly easy to build knowledge apps with no code due to its user-friendly interface and pre-built components. With Unoys, you can seamlessly create complex knowledge apps by simply dragging and dropping modules into place, without any programming knowledge required. Unoy is the ideal solution for automating expertise and increasing operational efficiency.Starting Price: $0 -
28
Cursor
Cursor
Cursor is an advanced AI-powered IDE designed to make developers exponentially more productive. Built with deep codebase understanding and intelligent automation, it combines natural language interaction with precise, context-aware editing tools. Its Agent feature acts as a human-AI coding partner capable of planning and executing entire development workflows, while the Tab model delivers remarkably accurate autocompletion and targeted suggestions. Cursor seamlessly integrates across environments—from GitHub and Slack to the command line—ensuring AI assistance is available wherever you code. Supporting leading models like GPT-5, Claude Sonnet, Gemini Pro, and Grok Code, it gives developers full control over autonomy and model selection. Fast, intuitive, and built for serious builders, Cursor is redefining what an IDE can be.Starting Price: $20 per month -
29
Apidog
Apidog
Apidog is a complete set of tools that connects the entire API lifecycle, helping R&D teams implement best practices for API Design-first development. Design and debug APIs in a powerful visual editor. Describe and debug easily with JSON Schema support. Automate API lifecycle with Apidog's test generation from API specs, visual assertion, built-in response validation, and CI/CD. Generate visually appealing API documentation, publish to custom domain or securely share with collaborative teams. Local and cloud mock engine generate reasonable mock data according to field names and specifications without writing scripts. Quality tools have the power to unite your entire team, while ensuring that no task is needlessly repeated. Effortlessly describe your API as you test it, and generate JSON/XML schemas with a simple click. Generate test cases from APIs, add assertions visually, and create test scenarios with branches and iterations easily.Starting Price: $9 per user per month -
30
Templately
WPDeveloper
Templately is a popular WordPress plugin that helps users create and manage pre-designed templates for their websites. Templately offers an extensive collection of templates for various purposes such as blogs, business websites, eCommerce websites, portfolios, and more. These templates can be easily customized to match the user's specific needs. Besides, Templately works as SaaS (Software as a Service) product that provides a cloud-based service for creating and managing WordPress templates. That means the users can access Templately from any device with an internet connection and a web browser, without downloading or installing any software. Templately also offers collaboration and sharing features, allowing multiple users to work on the same project simultaneously and share their templates with others. The plugin is user-friendly and requires no coding knowledge, making it an excellent choice for beginners and experienced users.Starting Price: $0
