Open Source Browsers
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Browsers
Browse free open source Browsers and projects for Mac and BSD 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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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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PNG (Portable Network Graphics image format) and MNG (Multiple-image Network Graphics image and animation format) home sites
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Telegraf
The plugin-driven server agent for collecting and reporting metrics
Telegraf is an agent for collecting, processing, aggregating, and writing metrics. Design goals are to have a minimal memory footprint with a plugin system so that developers in the community can easily add support for collecting metrics. Telegraf is plugin-driven and has the concept of 4 distinct plugin types. Input Plugins collect metrics from the system, services, or 3rd party APIs. Processor Plugins transform, decorate, and/or filter metrics. Aggregator Plugins create aggregate metrics (e.g. mean, min, max, quantiles, etc.). Output Plugins write metrics to various destinations. New plugins are designed to be easy to contribute, pull requests are welcomed and we work to incorporate as many pull requests as possible. You can try Telegraf right in your browser in the Telegraf playground. Telegraf shares the same minimum requirements as Go. -
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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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MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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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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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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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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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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HeadlessX
The undetected self-hosted browser automation platform
HeadlessX is an open-source, self-hosted browser automation platform designed to run headless browsers for tasks such as web scraping, automation, and testing. The system provides a centralized service that allows developers to programmatically control browser sessions and extract data from websites through a structured API. It is built using modern technologies including Node.js, Next.js, TypeScript, and Playwright, and uses a specialized browser engine called Camoufox based on Firefox. One of the platform’s goals is to bypass common bot-detection systems by implementing advanced fingerprint spoofing and stealth techniques. The tool can perform tasks such as HTML extraction, screenshot generation, content parsing, and search result scraping while appearing like a normal user browser. Because it is self-hosted, organizations can run the platform on their own infrastructure to maintain privacy and control over automation workflows. -
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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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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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Graphite is a project within SIL's scripts and software dev groups to provide cross-platform rendering for complex writing systems. This project has been deprecated. Graphite2, a new version of the Graphite engine, is available at: https://github.com/silnrsi/graphite with its own bug tracker.
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A graphical web browser with an emphasis on security, performance, and portability.
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Mink
PHP web browser emulator abstraction
Mink is an open-source PHP library that provides a browser abstraction layer for web application testing, allowing developers to simulate user interactions with websites in a consistent and flexible way. Instead of tying test logic to a specific browser driver, Mink introduces a unified API that can work with multiple drivers such as Goutte, Selenium, ChromeDriver, or BrowserKit. This abstraction enables developers to write tests once and run them across different environments without changing the test code. Mink is commonly used in behavior-driven development workflows, particularly with frameworks like Behat, where it helps simulate real user behavior such as clicking links, filling forms, and navigating pages. The library supports session management, allowing multiple browser sessions to run simultaneously and interact with different pages or environments. -
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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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The goal of the project is to create a 100% pure Java-based browser support the latest standards from the W3C. This project is made up of two parts, the actual browser application written in Java Swing and a Swing component that renders HTML.
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Treebolic is a Java suite (including library) whose purpose is to give a hyperbolic rendering of hierarchical data. A tree is rendered with nodes and edges but display space is subject to a particular curvature (hence the name).
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Browserless
The headless Chrome/Chromium driver on top of Puppeteer
Browserless is an open-source headless browser automation library and service built on top of Puppeteer that simplifies the process of running and scaling Chromium-based browser tasks in production environments. It provides a high-level API for interacting with headless Chrome, allowing developers to perform operations such as generating PDFs, capturing screenshots, extracting text or HTML, and automating web navigation. The project is designed to act as a production-ready abstraction layer over Puppeteer, offering improved reliability, error handling, and scalability for real-world applications. Browserless includes built-in optimizations such as request blocking, automatic retries, and sensible defaults that improve performance when processing web pages. It can be used as a standalone library, a command-line tool, or a hosted API service that scales browser instances on demand. -
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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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Playwright Skill for Claude Code
Claude Code Skill for browser automation with Playwright
Playwright Skill is an open-source plugin designed for Claude Code that enables dynamic browser automation using Playwright through natural language instructions. The tool allows an AI agent to generate, execute, and manage browser automation scripts on demand, rather than relying on predefined workflows or static test scripts. It is structured as a modular skill within the Claude ecosystem, meaning it can be installed as a plugin and invoked automatically when browser automation tasks are required. The system supports a wide range of use cases, including testing web applications, validating user interfaces, automating workflows, and extracting data from websites. One of its key advantages is its ability to generate custom Playwright code tailored to each request, allowing flexible and context-aware automation. -
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Reka UI
An open-source UI component library for building design systems
Reka UI is an open-source UI component library designed for building accessible and customizable web interfaces in Vue-based applications. The library provides a collection of unstyled UI primitives that developers can use as the foundation for creating fully customized design systems. Rather than forcing a predefined visual style, Reka UI focuses on accessibility, composability, and flexibility, allowing developers to implement their own visual themes and branding. The project evolved from the Radix Vue initiative and aims to bring the same accessibility-focused component patterns to the Vue ecosystem. By providing low-level building blocks instead of finished components, Reka UI allows developers to design complex interface elements while maintaining full control over styling and behavior. -
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Ruler
Gradle plugin which helps you analyze the size of your Android apps
App size is an important metric which directly correlates with business metrics like install conversion rate. Measuring app size is straightforward, but knowing what contributes to it is not. Especially in bigger projects with hundreds or thousands of modules and third-party dependencies. Ruler provides a convenient way to find out how much each module and dependency contributes to the total size of your app by running a single Gradle task. First you need to add the Ruler Gradle plugin to the buildscript classpath in your top-level build.gradle file. When using app bundles, Google Play will generate optimized APKs for each device. This means that the size of an APK depends on the specifications of the device that's downloading it. You can configure which device specifications should be used for the analysis in the build.gradle of your application module. -
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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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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.
