Material UI is an open-source React component library that implements Google's Material Design. It's comprehensive and can be used in production out of the box.
United States

Light Table is a new interactive IDE that lets you modify running programs and embed anything from websites to games. It provides the real time feedback we need to not only answer questions about our code, but to understand how our programs really work.


+3
Compatibility tables for support of HTML5, CSS3, SVG and more in desktop and mobile browsers.
United States

The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications.


+4
AI-powered web data extraction platform for turning websites into structured, reliable data with no-code tools, monitoring, and APIs.
United States


+3
#develop (short for SharpDevelop) is a free IDE for C#, VB.NET and Boo projects on Microsoft's .NET platform. It is open-source, and you can download both sourcecode and executables.
Switzerland

GTmetrix is a free tool that analyzes your page's speed performance. Using Page Speed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.
Cost / License
- Freemium
- Proprietary
Application typeApplication types
Platforms
- Online
Canada


ServBay is an AI-native local dev platform for web developers and coding agents. It integrates 50+ runtimes, databases, and web servers with a built-in MCP server, a secure local AI Gateway, and a remote app—forming the ultimate local infrastructure for AI-driven development.
United States


+9
Asp.net is an open source server-side Web application framework designed for Web development to produce dynamic Web pages, web sites, apps and services with HTML, CSS and JavaScript. You can also create Web APIs, mobile sites, use real-time technologies like Web Sockets and more!
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
United States

No-code and low-code site builder with drag and drop, ready-made templates, mobile-responsive designs, and support for scalable projects and optimization.
Poland
EU


+1
Jmix provides powerful full stack architecture along with Rapid Application Development tools for easy start and fast development of modern business web applications.
Cost / License
- Freemium
- Open Source (Apache-2.0)
Application typeApplication types
Platforms
- Mac
- Windows
- Linux
United Kingdom


+1
Free local development environment for Windows & macOS: nginx/Apache, multiple PHP versions, MySQL/MariaDB, PostgreSQL, Redis, MongoDB, Mailpit, Node.js, trusted .test HTTPS & a built-in MCP server.
Egypt


+3
Spring makes programming Java quicker, easier, and safer for everybody. Spring’s focus on speed, simplicity, and productivity has made it the world's most popular Java framework.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- Self-Hosted
United States

Germany
EU


Developed by Mozilla, the HTTP Observatory performs an in-depth assessment of a site’s HTTP headers and other key security configurations.
United States


Google Web Designer is a a program from Google for creating interactive HTML5 ads and other HTML5 content for any device.
United States


+7
Appcelerator Titanium, offered for free by Appcelerator, lets web developers use web technologies, open source and cloud computing to build native apps for iPhone, Android, Windows, Mac OSX and Linux.
Cost / License
- Free
- Open Source
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux
- Self-Hosted
United States

Nue JS is an exceptionally small (2.3kb minzipped) JavaScript library for building web interfaces. It is the core of the upcoming Nue ecosystem. It’s like Vue.js, React.js, or Svelte but there are no hooks, effects, props, portals, watchers, provides, injects, suspension, or...



Porkbun is an ICANN-accredited domain registrar based in Portland, OR. With a passion for all things Internet, the Porkbun team came together to create an effortless website naming system for the creative professionals and businesses of the world.
kodeWeave is a realtime coding playground for HTML, CSS and Javascript. Similar to JSFiddle and JSBin, but kodeWeave was made to work offline but also as a prototyping application to build applications for desktop operating systems while on mobile devices.
Cost / License
- Free
- Open Source
Application typeApplication types
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- Chrome OS
- Android Tablet


+7
GrapesJS is an open-source, multi-purpose, Web Builder Framework which combines different tools and features with the goal to help you (or users of your application) to build HTML templates without any knowledge of coding.
Cost / License
- Free
- Open Source
Platforms
- Online
- Self-Hosted
Russia


+2
Solr is an open source enterprise search server based on Lucene search library, with XML/HTTP and JSON APIs. Its major features include powerful full-text search, hit highlighting, faceted search, dynamic clustering, database integration, and rich document handling.
United States

Webpack is a module bundler for modern JavaScript applications. When webpack processes your application, it recursively builds a dependency graph that includes every module your application needs, then packages all of those modules into a small number of bundles — often only one...
Germany
EU












































































