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SynWrite is a free source code editor and notepad replacement for Microsoft Windows Operating Systems.

Handle thousands of packages with lightning-fast performance and reliable uptime. Flexible plans start free, with no credit card required.

Diffuse is a small and simple text merge tool written in Python. With Diffuse, you can easily merge, edit, and review changes to your code.

Blockly is a library for building visual programming editors. Users can drag blocks together to build an application. No typing required.

Unified Web Performance that automatically tests your pages and tracks real user experiences. Automatically discovers your busiest pages and scans them weekly, providing actionable recommendations. Integrated Real User Monitoring to track the actual experience of visitors to...

Compile Less, Sass, Scss, Stylus, Jade, Coffeescript, Haml and Markdown with live browser refresh.

More than 500+ of the best tutorials and courses on Python, JavaScript, HTML 5, Swift, Android and more. Using Hackr.io, you can:

Solarus is a free and open-source Action-RPG game engine, licensed under GPL v3, and written in C++. It runs quests in Lua, and can work on a great number of platforms. Solarus also features a game editor and a game launcher.

Codeanywhere is a code editor in a browser with a powerful ftp client integrated, and all popular web formats are supported (HTML, PHP, JavaScript, CSS, and XML).

Fast and simple Node.js version manager, built in Rust.

Simple Android text editor.

Visual issue tracking tool enabling point-and-click feedback on web pages with contextual metadata, turning notes into trackable tasks for streamlined collaboration.

A fully open-source headless CMS that supports Git and Visual Editing.

Build responsive, cloud-hosted websites with AI-generated designs, real-time visualization, and export options for platforms like WordPress.

Find, create, or share awesome apps that work right here in your browser. And for developers, join the #1 platform to build, distribute, and monetize web-based apps.

5apps helps both developers and users to get the most out of the Web as a software platform.

PyScripter is a free and open-source Python Integrated Development Environment (IDE) created with the ambition to become competitive in functionality with commercial Windows-based IDEs available for other languages.

TilBuci is a free, open source tool to create interactive content. From a visual web interface, you can gather your media, texts, and all content in the form of interactive "movies" that can be exported as websites, embedded via iframes, made available as PWA apps or...

A graphical interface to git repositories.

GNU LibreJS is a free add-on for GNU IceCat and other Mozilla-based browsers. It blocks nonfree nontrivial JavaScript while allowing JavaScript that is free and/or trivial.

A CMS for Static Site Generators to give non-technical users a simple way to edit and add content to any site built with a static site generator.

PyDev is a third-party plug-in for Eclipse. It is an Integrated Development Environment (IDE) used for programming in Python supporting code refactoring, graphical debugging, code analysis and many other features.

dnSpy is a debugger and .NET assembly editor. You can use it to edit and debug assemblies even if you don't have any source code available.

The Netwide Assembler, NASM, is an 80x86 and x86-64 assembler designed for portability and modularity. It supports a range of object file formats, including Linux and *BSD a.out, ELF, COFF, Mach-O, Microsoft 16-bit OBJ, Win32 and Win64. It will also output plain binary files.

Siter.io is a no-code website builder that allows you to design and publish websites without any code. It works by designing directly in the browser, freehand, using tools you already know.