Open Source TypeScript Browsers
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TypeScript Browsers
View 202 business solutionsBrowse free open source TypeScript Browsers and projects below. Use the toggles on the left to filter open source TypeScript Browsers by OS, license, language, programming language, and project status.
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Stop vibe-debugging.AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.
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FlareSolverr
Proxy server to bypass Cloudflare protection
FlareSolverr is a proxy server to bypass Cloudflare and DDoS-GUARD protection. FlareSolverr starts a proxy server, and it waits for user requests in an idle state using few resources. When some request arrives, it uses puppeteer with the stealth plugin to create a headless browser (Firefox). It opens the URL with user parameters and waits until the Cloudflare challenge is solved (or timeout). The HTML code and the cookies are sent back to the user, and those cookies can be used to bypass Cloudflare using other HTTP clients. Web browsers consume a lot of memory. If you are running FlareSolverr on a machine with few RAM, do not make many requests at once. With each request, a new browser is launched. It is also possible to use a permanent session. However, if you use sessions, you should make sure to close them as soon as you are done using them. It is recommended to install using a Docker container because the project depends on an external browser that is already included. -
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SponsorBlock
Skip YouTube video sponsors (browser extension)
SponsorBlock is an open-source crowdsourced browser extension and open API for skipping sponsor segments in YouTube videos. Users submit when a sponsor happens from the extension, and the extension automatically skips sponsors it knows about using a privacy-preserving query system. It also supports skipping other categories, such as intros, outros, and reminders to subscribe, and skipping to the point with highlights. The extension also features an upvote/downvote system with a weighted random-based distribution algorithm. Once one person submits this information, everyone else with this extension will skip right over the sponsored segment. SponsorBlock is a crowdsourced browser extension that let's anyone submit the start and end time's of sponsored segments of YouTube videos. -
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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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Happy DOM
Happy DOM is a JavaScript implementation of a web browser
Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML. The goal of Happy DOM is to emulate enough of a web browser to be useful for testing, scraping web sites, and server-side rendering. Happy DOM focuses heavily on performance and can be used as an alternative to JSDOM. Happy DOM now supports Declarative Shadow DOM which can be used for server-side rendering of web components. This package makes it possible to use Happy DOM with Jest. -
Ship Agents FasterGemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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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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fx_cast
Chromecast Web Sender SDK implementation for Firefox
A Firefox extension that implements the Chromecast API and exposes it to web apps to enable cast support. Communication with receiver devices is handled by a companion application (bridge). Install the Firefox extension (from within Firefox) and bridge application via the installer packages. These are two separate downloads that can be found on the website or in the GitHub releases section. The bridge application is currently supported on Windows, macOS and Linux. Clicking on the toolbar button or Cast... menu item in the page context menu will open a popup that shows a list of receiver devices will allow you to start casting the currently detected app2 or media. The extension provides a whitelist for ensuring only trusted sites are allowed to load the cast API and communicate with receiver devices. Sites may be added to the whitelist, either by clicking one of the whitelist options in the toolbar button context menu whilst visiting the site. -
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Choices.js
A vanilla JS customizable select box/text input plugin
Choices.js is a lightweight, configurable select box/text input plugin. Similar to Select2 and Selectize but without the jQuery dependency. Choices is compiled using Babel targeting browsers with more than 1% of global usage and expecting that features listed below are available or polyfilled in the browser. You may see exact list of target browsers by running npx browserslist within this repository folder. If you need to support a browser that does not have one of the features listed below, I suggest including a polyfill from the very good polyfill.io. Events fired by Choices behave the same as standard events. No jQuery dependency, configurable sorting, flexible styling, fast search/filtering, clean API, right-to-left support, custom templates. -
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Tamper Dev
Extension that allows you to intercept and edit HTTP/HTTPS requests
If you are a developer, you can use Tamper Dev to debug your websites, or if you are a pentester, you can use it to search for security vulnerabilities by inspecting the HTTP traffic from your browser. Unlike most other extensions, Tamper Dev allows you to intercept, inspect and modify the requests before they are sent to the server. This extension provides functionality similar to Burp Proxy, MITM Proxy, OWASP ZAP, Tamper Data, and Postman Proxy, but without the need of additional software, with full support of HTTPS connections, and trivial to set-up (just install). -
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JSONView
A web extension that helps you view JSON documents in the browser
A web extension that helps you view JSON documents in the browser. Normally when encountering a JSON document (content type application/json), Firefox simply prompts you to download the view. With the JSONView extension, JSON documents are shown in the browser similar to how XML documents are shown. The document is formatted, highlighted, and arrays and objects can be collapsed. Even if the JSON document contains errors, JSONView will still show the raw text. JSONView is a Web extension compatible with Firefox and Google Chrome that helps you view JSON documents in the browser. Once you've got JSONView installed, check out the example JSON file to see the extension in action! If you'd like to contribute to JSONView but don't want to code, consider contributing a translation. Copy the existing localization files from src/_locale and fill them in for your own language, then send a pull request. You can do it all from the GitHub interface. There's not many strings to translate! -
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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Wexond
Modern and feature-rich web browser base based on Electron
Wexond is a beautiful, open-source, extensible web browser that's focused on privacy and offers a totally new user experience. Because it's made with Electron, it's not bloated with redundant Google tracking services and only utilizes minimal resources. And thanks to its Wexond Shield powered by Cliqz, websites can load up to eight times faster, and you can freely browse the web without pesky ads or worrying about websites tracking you. It features a clean, modern UI that's fast and fluent, with silky smooth animations that are perfectly timed. You can choose between a compact or normal browser UI. It also features convenient tab groups and scrollable tabs. Browse the web without any ads and don't let websites to track you. The animations are really smooth and their timings are perfectly balanced. Downloads popup with currently downloaded items (download manager WebUI page is WIP). -
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lightGallery
A customizable, modular, responsive, lightbox gallery plugin
A lightweight, modular, JavaScript image and video lightbox gallery plugin. Available for React.js, Vue.js, Angular, and TypeScript. lightGallery is built with the most modern technologies available to achieve the best performance and quality. It supports all modern browsers including IE 10 and above. Built with modular architecture. Easily create your own modules, or detach modules that you don't want to use. lightGallery comes with many built-in modules, such as thumbnails, zoom, etc. light gallery is highly optimized for mobile and tablets to get the native look and feel and achieve the best performance. Supports separate settings for mobile devices to optimize further. lightGallery comes with numerous options, which allow you to customize the plugin without touching the core code. You can easily customize the look and feel of the gallery by updating SASS variables. -
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Browserless
Deploy headless browsers in Docker
Browserless is an open-source browser automation platform for running headless browsers in Docker or through Browserless-hosted cloud infrastructure. It lets developers connect existing Puppeteer and Playwright code to remote browser sessions over WebSocket, which helps move heavy browser work away from local machines or application servers. The project also provides REST APIs for common automation tasks such as screenshots, PDF generation, scraping, crawling, and content export. Browserless is useful for teams that need scalable browser execution for testing, data collection, rendering, or AI-agent browsing workflows. Its deployment model supports self-hosting, private infrastructure, queues, concurrency controls, and enterprise-oriented configuration. The project’s main value is turning browser automation into a managed service layer that can be reused across applications and workflows. -
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Browserosaurus
The browser prompter for macOS
Browserosaurus is an open-source (GPLv3 license), browser prompter for macOS. It works by setting itself as the default browser; any clicked links in non-browser apps are now sent to Browserosaurus where you are presented with a menu of all your installed browsers. You may now decide which app you’d like to continue opening the link with. Select from any of your installed browsers when clicking a link in a non-browser app. Download Browserosaurus from the GitHub releases page. Select x64 for Intel machines, or arm64 for Apple Silicon (M1) machines. Please note that Browserosaurus only officially supports the version of macOS that I currently use, which you can assume to be the latest stable version. -
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DownThemAll!
The DownThemAll! WebExtension
DownThemAll is a powerful yet easy-to-use extension that adds new advanced download capabilities to your browser. DownThemAll lets you download all the links or images on a website and much more: you can refine your downloads by fully customizable filters to get only what you really want. DownThemAll is all you can desire from a download manager: it allows you to queue, pause and resume downloads at any time and is fully integrated in your favorite browser! This is the WebExtension version of DownThemAll!, a complete re-development from scratch. Being a WebExtension it lacks a ton of features the original DownThemAll! had. Sorry, but there is no way around it since Mozilla decided to adopt WebExtensions as the only extension type and WebExtensions are extremely limited in what they can do. -
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Faust.js
The Headless WordPress Toolkit
Faust.js is an open-source toolkit designed to simplify the development of headless WordPress websites using modern JavaScript frameworks such as Next.js and React. It provides developers with a structured set of tools that bridge WordPress content management with frontend frameworks, enabling teams to build high-performance decoupled websites while still relying on WordPress as the backend CMS. The toolkit addresses many of the challenges associated with headless WordPress development, including authentication, preview functionality, and data fetching between the frontend and the WordPress backend. Faust.js integrates closely with technologies such as WPGraphQL and Apollo Client, which allow developers to query WordPress content through a GraphQL API instead of traditional PHP templates. -
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QA Wolf
Create browser tests 10x faster
Set up browser tests in minutes to find bugs before your users do. QA Wolf helps you create, run, and maintain end-to-end tests 10x faster. We found browser testing too difficult and often gave up on it entirely in our previous jobs. We built QA Wolf for developers like us who want to spend less time testing and more time shipping. QA Wolf is zero-effort automated QA. We get you to 80% coverage in four months, and keep you there, so your team can stay focused on shipping. 2/3 of tech companies have less than 50% test coverage. Why? Traditional QA strategies pit coverage against velocity. The more testing you do, the slower you ship. QA Wolf is different. By combining the best parts of in-house QA & test platforms, we deliver ultra-high end-to-end test coverage that never slows you down. First step is getting to know your app. You don’t have to have any kind of test plan; a short demo is all we need. -
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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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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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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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Ulixee Hero
The web browser built for scraping
It's the first modern headless browsers designed specifically for scraping instead of just automated testing. Hero provides access to the W3C DOM specification without the need for Puppeteer's complicated evaluate callbacks and multi-context switching. We've recreated a fully compliant DOM directly in NodeJS allowing you bypass the headaches of previous scraper tools. The powerful Chrome engine sits under the hood, allowing for lightning fast rendering. Emulators make it easy to disguise your script as practically any browser. -
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Vim Vixen
Accelerates your web browsing with Vim power
Vim Vixen is a Firefox add-on which allows you to easily navigate the web by keyboard. Since version 57, Firefox has migrated to the WebExtensions API and has dropped support for legacy add-ons. Vim Vixen is a new choice for Vim users since it uses the WebExtensions API. To get Vim Vixen, install it from Firefox add-ons. Vim Vixen is supported on Firefox 68 ESR. Please install the latest version of stable ESR from the download page. You can install Vim Vixen from Firefox add-ons (addons.mozilla.org), and manage installed add-ons on Firefox preferences about:preferences. Vim Vixen supports command line to run commands that control tabs and opens a tab. -
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crawlee
A web scraping and browser automation library for Node.js
Crawlee is a web scraping and browser automation library. It helps you build reliable crawlers. Fast. Crawlee won't fix broken selectors for you (yet), but it helps you build and maintain your crawlers faster. When a website adds JavaScript rendering, you don't have to rewrite everything, only switch to one of the browser crawlers. When you later find a great API to speed up your crawls, flip the switch back. It keeps your proxies healthy by rotating them smartly with good fingerprints that make your crawlers look human-like. It's not unblockable, but it will save you money in the long run. Crawlee is built by people who scrape for a living and use it every day to scrape millions of pages. Meet our community on Discord. We believe websites are best scraped in the language they're written in. Crawlee runs on Node.js and it's built in TypeScript to improve code completion in your IDE, even if you don't use TypeScript yourself. -
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Apollo Client Browser Devtools
Apollo Client browser developer tools
This repository contains the Apollo Client Browser Devtools extension for Chrome & Firefox. The Apollo Client Browser Devtools appears as an "Apollo" tab in your web browser inspector, alongside other tabs like "Elements" and "Console". Send queries to your server through your web applications configured Apollo Client instance, or query the Apollo Client cache to see what data is loaded. View active queries, variables, cached results, and re-run individual queries. View fired mutations, and variables, and re-run individual mutations. Visualize the Apollo Client cache and search through it by field names and/or values. You can install the extension via Firefox Browser Add-ons or the Chrome Webstore. If you want to install a local version of the extension instead, skip ahead to the Developing section. While your application is in dev mode, the devtools will appear as an "Apollo" tab in your web browser inspector. -
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Authenticator
Authenticator generates 2-Step Verification codes in your browser
Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts. Always keep a backup of your secrets in a safe location. Encrypting your secrets is strongly recommended, especially if you are logged into a Google account. Back up your secrets to a file, Google Drive, Microsoft OneDrive, or Dropbox. Sync your secrets with your Google Account. Available for Chrome, Firefox, and Microsoft Edge. Import data from Google Authenticator's official mobile App. -
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Bagisto Next.js Commerce
Open source headless commerce that’s fast, flexible
Next.js Commerce by Bagisto is an open-source headless eCommerce framework designed to build fast, modern storefronts using the Next.js ecosystem. The project combines the Bagisto commerce backend with a frontend built using Next.js, enabling developers to create scalable and flexible commerce experiences with a fully decoupled architecture. The framework emphasizes performance by leveraging optimized rendering strategies and layered caching, which helps storefronts achieve strong Core Web Vitals scores and deliver fast loading experiences for customers. By separating backend commerce logic from the frontend presentation layer, developers can customize the shopping interface while maintaining robust product, order, and customer management through the Bagisto platform. The architecture is API-driven, allowing developers to build custom frontends, mobile apps, or integrations without being locked into a specific interface.
