Browse free open source Web Development software and projects below. Use the toggles on the left to filter open source Web Development software by OS, license, language, programming language, and project status.

  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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  • 1
    Notepad++

    Notepad++

    Free, open-source text editor

    Notepad++ is a source code editor that is free to use and is available in various languages. The source code editor is also written in C++ and is based on the Scintilla editing component. Notepad++ offers a wide range of features, such as autosaving, line bookmarking, simultaneous editing, tabbed document interface, and many more features. Over 140 plugins are also available to use in the default program. Notepad++ takes advantage of higher execution speed and smaller program size by using Win32 API and STL. The ability to optimize efficiency without sacrificing user-friendliness results in an environment-friendly technology that reduces carbon dioxide emissions. Ultimately, the reduction in power consumption is much better for the environment while still being a viable option for businesses. If you like this project consider donating. https://notepad-plus-plus.org/donate/
    Downloads: 2,473 This Week
    Last Update:
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  • 2
    jEdit

    jEdit

    jEdit is a programmer's text editor written in Java.

    jEdit is a programmer's text editor written in Java. It uses the Swing toolkit for the GUI and can be configured as a rather powerful IDE through the use of its plugin architecture.
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    Downloads: 523 This Week
    Last Update:
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  • 3
    Atom

    Atom

    A hackable text editor for the 21st Century

    Atom is a text editor that's modern, approachable and full-featured. It's also easily customizable- you can customize it to do anything and be able to use it productively without ever touching a config file. Atom is free to download and runs on Linux, OS X and Windows with support for plug-ins written in Node.js and embedded Git Control. It is based on Electron (formerly known as Atom Shell),a framework for building cross-platform apps using Chromium and Node.js.
    Downloads: 78 This Week
    Last Update:
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  • 4
    Brackets

    Brackets

    A modern, lightweight yet powerful text editor

    Brackets is a free, modern open-source text editor made especially for Web Development. Written in HTML, CSS, and JavaScript with focused visual tools and preprocessor support, Brackets makes it easy for web designers and front-end developers to design in the browser. Its blend of visual tools ensures you get just the right amount of help when you want it without disrupting your creative process. It's the better, easier and more enjoyable way of writing code.
    Downloads: 55 This Week
    Last Update:
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  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build generative AI apps with Vertex AI. Switch between models without switching platforms.
    Start Free
  • 5
    Quanta+ is a web development environment for HTML and associate languages. We are working to make it as full featured as any web tool available and a first choice for professional and recreational Linux web develoment.
    Downloads: 11 This Week
    Last Update:
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  • 6
    cssed is an scriptable and modular GTK2 CSS editor and syntax validator, written for the Linux platform, to help web developers to maintain and create CSS stylesheets for web publishing. There are versions of cssed for MacOsX and Win32, and BSD.
    Downloads: 0 This Week
    Last Update:
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