Free & open-source browser agents and browser automation tools (2026)

AgentScout tracks 1,625 AI agent tools across 30 categories and checks every link daily. This page is one slice of that directory: the 26 most-starred browser agents and browser automation tools you can use for free, 25 of them fully open source. Each one links to its listing, code and official site, so you can judge it yourself.

Updated October 20, 2026

What browser agents are for

Browser agents let an AI model use the web the way a person does: open pages, click, type, log in and pull out data. Developers use them to automate repetitive web work, test UIs from plain-language steps, give coding agents like Claude Code or Cursor a live browser through MCP, and turn messy sites into clean, LLM-ready data. This list covers libraries, MCP servers, headless browsers, browser extensions and full desktop agents.

The 26 tools

How we picked and ranked: tools are matched by category, the pricing each maker states and what each tool says it does. They are ranked by GitHub stars as recorded on each listing (link checks 2026-10-21); tools without a tracked repo follow, by listing maturity. No paid placements.

1. 

   1. Browser Use

   browser/computer useOpen source + cloud★ 117,912 GitHub stars

   Library that lets AI agents control a web browser.

   Pricing (as stated): Open source + paid cloud · Mature

2. 

   2. Scrapling

   browser/computer useOpen source★ 88,372 GitHub stars

   Python web-scraping framework with fast HTTP requests, stealth browsers, adaptive parsing and concurrent crawling, plus an MCP server for agents.

   Pricing (as stated): Open source · Mature

3. 

   3. Crawl4AI

   browser/computer useOpen source★ 85,667 GitHub stars

   Open-source crawler that turns websites into clean, LLM-ready Markdown for agents and RAG pipelines.

   Pricing (as stated): Open source · Mature

4. 

   4. Chrome DevTools MCP

   browser/computer useOpen source★ 53,681 GitHub stars

   Official MCP server that lets coding agents control and inspect a live Chrome browser through DevTools for debugging and performance work.

   Pricing (as stated): Open source · Mature

5. 

   5. UI-TARS-desktop

   browser/computer useOpen source★ 39,297 GitHub stars

   ByteDance's open-source multimodal agent stack, including a desktop app and Agent TARS for controlling computers and browsers.

   Pricing (as stated): Open source · Mature

6. 

   6. Playwright MCP

   browser/computer useOpen source★ 38,115 GitHub stars

   Microsoft's MCP server giving agents browser control via Playwright.

   Pricing (as stated): Open source · Mature

7. 

   7. Lightpanda

   browser/computer useOpen source + cloud★ 36,657 GitHub stars

   Headless browser written from scratch in Zig for AI agents and automation, built for speed and low memory rather than forked from Chromium.

   Pricing (as stated): Open source + cloud · Mature

8. 

   8. CloakBrowser

   browser/computer useOpen source★ 32,280 GitHub stars

   Chromium build with source-level fingerprint patches, used as a drop-in Playwright or Puppeteer replacement for agent browsing.

   Pricing (as stated): Open source · Mature

9. 

   9. ScrapeGraphAI

   browser/computer useOpen source + cloud★ 31,882 GitHub stars

   Python library that uses LLMs and graph logic to build scraping pipelines: describe the data you want and it extracts it from websites or documents.

   Pricing (as stated): Open source + cloud · Mature

10. 

    10. OpenCLI

    browser/computer useOpen source★ 30,335 GitHub stars

    Turns websites into CLI commands and lets agents use your logged-in browser.

    Pricing (as stated): Open source · Mature

11. 

    11. Cua

    browser/computer useOpen source + cloud★ 29,966 GitHub stars

    Open-source infrastructure for computer-use agents: sandboxes, drivers across operating systems and benchmarks.

    Pricing (as stated): Open source + cloud · Mature

12. 

    12. Page Agent

    browser/computer useOpen source★ 29,459 GitHub stars

    JavaScript in-page agent that controls web interfaces from natural language instructions.

    Pricing (as stated): Open source · Mature

13. 

    13. Stagehand

    browser/computer useOpen source★ 25,660 GitHub stars

    Browser automation framework mixing code with natural-language actions.

    Pricing (as stated): Open source · Mature

14. 

    14. Moli

    browser/computer useOpen source★ 19,349 GitHub stars

    Lightweight Rust headless browser for AI agents that fetches pages, searches and extracts content, usable via CLI, CDP or WebDriver.

    Pricing (as stated): Open source · Mature

15. 

    15. Browser Harness

    browser/computer useOpen source★ 18,465 GitHub stars

    Agent skill from the Browser Use team that lets Claude Code, Codex or Cursor drive your own logged-in Chrome to click, type, read pages and download files.

    Pricing (as stated): Open source · Mature

16. 

    16. Maxun

    browser/computer useOpen source + cloud★ 17,875 GitHub stars

    Turns websites into structured APIs with no-code robots for extraction and monitoring.

    Pricing (as stated): Open source + cloud · Mature

17. 

    17. ego lite

    browser/computer useFreemium★ 17,562 GitHub stars

    Free macOS browser where Claude Code or Codex run automation tasks in their own isolated Spaces next to your tabs, reusing your logged-in sessions through an agent skill.

    Pricing (as stated): Freemium · Mature

18. 

    18. Browser Use Web UI

    browser/computer useOpen source★ 16,618 GitHub stars

    Gradio web interface for the Browser Use agent that runs AI browser automation tasks with many LLM providers and your own browser.

    Pricing (as stated): Open source · Mature

19. 

    19. Midscene.js

    browser/computer useOpen source★ 15,311 GitHub stars

    Vision-driven UI automation and E2E testing framework where a GUI agent carries out natural-language steps on web, mobile and desktop apps.

    Pricing (as stated): Open source · Mature

20. 

    20. CloudCLI

    codingOpen source + cloud★ 14,189 GitHub stars

    A web and mobile interface for Claude Code, Codex and Gemini CLI, so you can run and steer coding sessions from a browser or phone. Self-host free or use the hosted CloudCLI service.

    Pricing (as stated): Free to self-host (AGPL); hosted CloudCLI from €7/month. · Mature

21. 

    21. Nanobrowser

    browser/computer useOpen source★ 14,108 GitHub stars

    Open-source Chrome extension agent that automates web tasks in your own browser.

    Pricing (as stated): Open source · Mature

22. 

    22. BrowserOS

    browser/computer useOpen source★ 13,953 GitHub stars

    Open-source agentic browser that runs AI agents locally.

    Pricing (as stated): Open source · Mature

23. 

    23. Agent-S

    browser/computer useOpen source★ 12,629 GitHub stars

    Open agentic framework that uses computers like a human through the GUI.

    Pricing (as stated): Open source · Mature

24. 

    24. Google ARTEMIS

    browser/computer useOpen source★ 12,038 GitHub stars

    Google's tool that turns natural-language instructions into Android automation.

    Pricing (as stated): Open source · Mature

25. 

    25. RobotGo

    browser/computer useOpen source★ 10,871 GitHub stars

    Go library for cross-platform desktop automation and AI computer use that controls mouse, keyboard, screen, windows and processes.

    Pricing (as stated): Open source · Mature

26. 

    26. Magentic-UI

    browser/computer useOpen source★ 10,097 GitHub stars

    Microsoft Research's experimental human-in-the-loop agent that works across the browser and local files.

    Pricing (as stated): Open source · Mature

FAQ

What are open source browser agents?

Open-source browser agents are tools with public source code that let an AI model drive a real web browser: open pages, click, type, fill forms and pull out data. 25 of the 26 tools on this page are open source, including Browser Use, Scrapling, Crawl4AI.

What are the best free browser automation tools?

Ranked by tracked GitHub stars, the most popular free browser automation tools in our directory are Browser Use, Scrapling, Crawl4AI, Chrome DevTools MCP, UI-TARS-desktop. Stars measure popularity, not fit, so try two or three on your own task.

Are these browser agents really free?

Every tool here is open source or has a free plan. Pricing mix on this page: Open source (19), Open source + cloud (6), Freemium (1). Open-source tools may still need a paid model API key, and some sell an optional hosted cloud.

How many browser agents does AgentScout list?

93 free or open-source tools match browser automation in our directory of 1,625 tools across 30 categories. This page shows the top 26.

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Browser agents are one corner of AgentScout. Browse all 1,625 tools across 30 categories to find the rest of your agent stack.

Related categories: Browser/computer use

Facts come from our directory listings; pricing is as each maker states it and can change. Check official sites before you choose.