Open Source ChromeOS Browsers
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Browsers for ChromeOS
Browse free open source Browsers and projects for ChromeOS below. Use the toggles on the left to filter open source Browsers by OS, license, language, programming language, and project status.
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Go From AI Idea to AI App FastAccess Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
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Gemma 4 Browser Assistant
On-device AI agent Chrome extension powered by Transformers.js
Gemma 4 Browser Assistant is an open-source browser extension that embeds an AI assistant directly into the browsing experience, powered by on-device machine learning models. It uses Transformers.js and Gemma models to run inference locally in the browser, eliminating the need for external servers and preserving user privacy. The extension includes a side panel interface that allows users to interact with the AI while browsing, enabling tasks such as summarizing pages and answering questions. It can access and analyze page content, browsing history, and tab state to provide contextual assistance. The architecture follows modern browser extension standards, with separate components for background processing, content scripts, and UI rendering. It also supports tool-calling capabilities, allowing the AI to perform actions such as navigating tabs or highlighting elements. Overall, it demonstrates how to build fully local, agent-based assistants inside web browsers. -
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Eric Integrated Development Environment
Python Development Environment with all batteries included
Eric is a Python IDE written using PyQt and QScintilla. It provides various features such as any number of open editors, an integrated (remote) debugger, project management facilities, unit test, refactoring and much more. -
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uBlock
uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox
uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox, and Safari. Available on the Chrome Web Store or for manual installation. Available to install from the homepage. Available for install from the homepage or from the App Store. Available on the Firefox Add-ons site, or for manual installation. Opera shares Chrome's underlying engine, so you can install uBlock simply by grabbing the latest release for Chrome.To benefit from uBlock's higher efficiency, it's advised that you don't use other blockers at the same time (such as AdBlock or Adblock Plus). uBlock will do as well or better than most popular ad blockers. It's important to note that blocking ads is not theft. Don't fall for this creepy idea. The ultimate logical consequence of blocking = theft is the criminalisation of the inalienable right to privacy. -
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PNG (Portable Network Graphics image format) and MNG (Multiple-image Network Graphics image and animation format) home sites
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FreeWRL is an Open Source, cross platform VRML2 and X3D compliant browser, with script, SAI and EAI support. Platforms supported: Linux and other Unix-style platforms; Mac OS/X; Windows. Support for mobile platforms (iOS, Android, QNX) is under development.
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Turbo Download Manager
A portable modern multi-threading download manager for all platforms
A modern multi thread download manager for Windows, Linux, Mac OS, Firefox, Chrome, Opera and Android devices. For bug reports visit: https://github.com/inbasic/turbo-download-manager/issues For FAQs visit: http://add0n.com/turbo-download-manager.html Turbo Download Manager is an stand-alone application without any dependencies. It should run out of the box. Just set the download location while adding the first job request. If you have a browser and would like to integrate this download, use these browser extensions: Firefox: https://addons.mozilla.org/firefox/addon/turbo-download-manager/ Opera: https://addons.opera.com/extensions/details/turbo-download-manager/ Chrome: https://chrome.google.com/webstore/detail/turbo-download-manager/kemfccojgjoilhfmcblgimbggikekjip -
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Open ChatGPT Atlas
Open Source and Free Alternative to ChatGPT Atlas
Open ChatGPT Atlas is an open-source toolkit and interface for working with OpenAI’s ChatGPT models in a more extensible, adaptable, and composable way than standard web UIs allow. It provides an architecture where developers and power users can manage state, tool integrations, and multi-turn workflows with more control, enabling custom UIs, automation layers, and advanced routing logic. Unlike a fixed chat app, Atlas is designed as a foundation that can be extended with plugins, external APIs, and custom logic to support domain-specific assistants, agent-like behaviors, and multi-task workflows. The project includes utilities for session management to preserve context across interactions, structured interfaces for streaming responses, and integration layers that let you plug in third-party tools and services. It often forms the basis for research, prototyping, or production systems where the default ChatGPT interface isn’t flexible enough. -
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Dev Browser
A Claude Skill to give your agent the ability to use a web browser
Dev Browser is a browser automation skill/plugin that enables an AI agent to control a real browser for verification and testing during development. Its purpose is to close the gap between “code was written” and “the UI actually works,” by letting the agent navigate, interact with pages, and validate behavior in a live environment. A key idea is persistence: the browser can keep pages open so the agent can navigate once and then perform multiple interactions across scripts without losing state each time. It supports flexible execution modes, allowing full-script runs when tasks are straightforward and step-by-step exploration when the agent needs to inspect or iterate carefully. To make automation more reliable for language models, it provides LLM-friendly DOM snapshots that structure the page in a way that is easier for an agent to interpret than raw HTML dumps. -
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Pinchtab
High-performance browser automation bridge and orchestrator
Pinchtab is a lightweight browser automation backend built specifically for AI agents that need efficient, programmatic web control. Implemented as a small standalone HTTP server, it allows any agent or script to interact with web pages using simple API calls instead of heavyweight browser frameworks. The tool emphasizes accessibility-first snapshots that dramatically reduce token usage compared to screenshot-based approaches, making it cost-effective for large-scale automation. It launches and manages its own Chrome instance while remaining framework-agnostic, so it can be used with any language or agent system. Pinchtab also supports persistent sessions, stealth automation, and both headless and headed operation modes. The project’s goal is to provide fast, cheap, and portable browser control infrastructure for modern AI workflows. -
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Factorio
Factorio headless server in a Docker container
Factorio is an open-source project that provides a Docker container for running a headless Factorio game server. Factorio is a factory-building simulation game in which players automate production lines, research technologies, and manage complex industrial systems, and the repository focuses specifically on hosting the game server in a containerized environment. By packaging the server into a Docker image, the project simplifies the process of deploying and maintaining multiplayer servers across different operating systems and cloud environments. The container automatically handles dependencies, configuration, and updates, making it easier for system administrators and hobbyists to run dedicated Factorio servers. Users can configure server settings, maps, mods, and saved games through mounted volumes and environment variables within the container. -
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Sanity
Rapidly configure content workspaces powered by structured content
Sanity is an open-source real-time headless content management system that allows developers to manage structured content for websites, applications, and digital platforms. At the core of the system is Sanity Studio, a customizable editing environment built with React that can be configured to match the workflows and content models of different teams. Instead of using predefined content templates, Sanity allows developers to define schemas in code that determine how content is structured and stored. The platform stores data in a real-time backend called the Content Lake, enabling collaborative editing and instant updates across connected applications. Because the system separates content management from presentation, developers can use any front-end framework to display the data. Sanity also includes APIs and query tools that allow developers to retrieve content dynamically and integrate it into websites, mobile apps, and other digital services. -
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builder.io
Visual Development for React, Vue, Svelte, Qwik, and more
Builder is an open-source visual development platform and headless content management system designed to help teams build and manage digital experiences more efficiently. The platform combines a drag-and-drop visual editor with an API-driven content system that can deliver structured content to any front-end framework or application. Builder allows developers to integrate their existing components and design systems while enabling designers and marketers to modify layouts and publish content without writing code. Through its headless architecture, content and layouts can be delivered across websites, mobile applications, and other digital channels. The system also includes optimization tools that allow teams to experiment with layouts, personalize content, and iterate on user experiences quickly. -
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gradle-completion
Gradle tab completion for bash and zsh
Bash and Zsh completion support for Gradle. This provides fast tab completion for: Gradle tasks for the current project and sub-projects. Gradle CLI switches (e.g. --parallel). Common Gradle properties (e.g. -Dorg.gradle.debug) It also handles custom default build files, so rootProject.buildFileName = 'build.gradle.kts' is supported. See instructions for bash or for zsh, then consider optional additional configuration. Download and place the plugin and completion script into your oh-my-zsh plugins directory. Completion cache initialization happens the first time you invoke completion and usually takes a few seconds, depending on the size of your project. You can manually initialize the cache and avoid interrupting your development mojo. Tab completion checks known build scripts to see if they've been changed and refreshes the task cache if so. -
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the hotdog web browser
The hotdog web browser and browser engine
the hotdog web browser project is a hobbyist web browser and layout engine written entirely from scratch in Go to explore how browsers work under the hood, implementing core components like an HTML parser, CSS rendering, UI toolkit, networking, and layout logic without relying on heavy external dependencies. It’s far from being a complete or spec-compliant browser, but it’s designed to be a learning platform and experimental codebase for anyone curious about browser internals and rendering architecture. The repository includes custom named modules such as ketchup for HTML parsing, mayo for CSS rendering, and a minimal OpenGL/GLFW-based UI toolkit termed mustard, among others. Because it’s handcrafted with minimal dependencies (only OpenGL and GLFW outside the standard library), it emphasizes understanding every part of the browser stack. Development is ongoing and community contributions (ideas, features, bug reports) are welcome. -
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CSSBox
Pure Java HTML / CSS rendering engine
CSSBox is an (X)HTML/CSS rendering engine written in pure Java. Its primary purpose is to provide a complete information about the rendered page suitable for further processing. However, it also allows displaying the rendered document. -
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XForms to XHTML+Javascript (AJAX) conversion based on a unique XSL transformation. Suitable server-side (PHP) or client-side (Internet Explorer, Mozilla FireFox, Opera, Safari) browser treatement where an XSLT 1.0 engine is available
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A graphical web browser with an emphasis on security, performance, and portability.
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Cockpit Next
Add content management functionality to any site
Cockpit is an open-source headless content management system designed to add flexible content management functionality to websites, applications, and digital platforms. The system provides a lightweight backend where developers can create custom content models and manage structured data without imposing a specific front-end framework. Because Cockpit follows an API-first architecture, content can be delivered through REST or GraphQL APIs to any application, including websites, mobile apps, and static site generators. The platform is designed to be simple to install and can be hosted on standard PHP environments with minimal configuration. Developers can create collections, singletons, and content trees to organize structured data according to the needs of their project. Cockpit also supports extensions and add-ons that expand the system with additional functionality such as search, authentication, or localization features. -
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Plasmic
Build apps, websites, and content. Integrate with your codebase
Plasmic is a visual development platform designed to help teams design, build, and manage websites and web applications through a combination of visual editing tools and code integration. The platform provides a drag-and-drop design environment that allows designers, developers, and product teams to collaborate on building user interfaces while maintaining compatibility with modern front-end frameworks. Instead of requiring developers to manually code every layout, Plasmic allows visual designs to be converted directly into production-ready React components and integrated into existing codebases. This approach enables non-developers such as designers or marketers to create and modify content without breaking application logic. Plasmic also functions as a headless CMS and page builder that can deliver content and components to multiple types of applications. -
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WhichBrowser
Browser sniffing gone too far — A useragent parser library for PHP
This is an extremely complicated and almost completely useless browser-sniffing library. Useless because you shouldn't use browser sniffing. So stop right now and go read something about feature detecting instead. I'm serious. Go away. You'll thank me later. There is always an exception to the rule. There are valid reasons to do browser sniffing: to improve the user experience or to gather intelligence about which browsers are used on your website. My website is html5test.com and I wanted to know which score belongs to which browser. To do that you need a browser sniffing library. Almost all browsers say they are Netscape 5 and almost all WebKit browsers say they are based on Gecko. Even Internet Explorer 11 now no longer claims to be IE at all, but instead, an unnamed browser that is like Gecko. And it gets worse. That is why it is complicated. -
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NetZ Browser
A JAVA based Multi tab Web Browser having emphasis on Features.
What's new and Fixed....v1.02 __________________________________ 1) Added Complete iRemember Feature. 2) Added Messenger application. 3) Added new Icons. 4) Added new Window Option. 5) Fixed User Accounts. 6) Fixed a lot of bugs(back,forward, history related). 7) Added a new option "CLEAN" that would clean the address bar and would make the page blank. 8) Removed Stop button. 9) Added New Application icon. 10) Added Express Accounts feature. 10) Added in Downloads the Web browser server Application and the messenger server application. ___________________________________ IV) NOW what is iRemember??? It's a feature in this web browser that will not only help you to save your browsing progress at any time but also to resume it from any computer/anywhere around the world until you are using this browser. -
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Please visit http://imgv.sf.net/ - IMGV is a cross-platform Image Viewer. Features include slideshows, exif viewing, histograms, gamma correction, adjustable thumbnails, playlists, website image extraction, multi-dir loading, movies, and much more.
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Free, Fast, Secure and User-Friendly Webbrowser
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Firefox Bookmarks.html Merger
Program for intelligently merging firefox bookmars.html files.
A python module that parses the 'bookmarks.html' files that firefox creates. Multiple bookmark files can be merged together and finally a new bookmarks.html file written. It depends apon the python module pyparsing.
