Open-source browser agents (2026)

Open-source libraries and agents that drive a real browser: clicking, typing, filling forms and extracting data. Here are the top 25 of 28 from the AgentScout directory.

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 2026-10-18); tools without a tracked repo follow, by listing maturity. No paid placements.

1. B

   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. C

   2. 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

3. C

   3. 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

4. U

   4. 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

5. P

   5. 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

6. O

   6. 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

7. C

   7. 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

8. P

   8. 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

9. S

   9. Stagehand

   browser/computer useOpen source★ 25,660 GitHub stars

   Browser automation framework mixing code with natural-language actions.

   Pricing (as stated): Open source · Mature

10. B

    10. 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

11. M

    11. 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

12. N

    12. 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

13. B

    13. BrowserOS

    browser/computer useOpen source★ 13,953 GitHub stars

    Open-source agentic browser that runs AI agents locally.

    Pricing (as stated): Open source · Mature

14. A

    14. 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

15. G

    15. 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

16. M

    16. 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

17. M

    17. Mobilerun

    browser/computer useOpen source + cloud★ 9,676 GitHub stars

    LLM-agnostic agent framework for controlling Android and iOS devices with natural language.

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

18. S

    18. Steel

    browser/computer useOpen source + cloud★ 7,821 GitHub stars

    Open-source browser API and sandbox for AI agents to control web browsers at scale.

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

19. B

    19. BrowserTools MCP

    MCP & infraOpen source★ 7,328 GitHub stars

    MCP server that lets Cursor and other agents read browser console logs and network activity.

    Pricing (as stated): Open source · Mature

20. O

    20. OpenBot

    personal agentsOpen source★ 6,556 GitHub stars

    Open-source AI coworkers that each get their own computer with a browser, files and tools.

    Pricing (as stated): Open source · Mature

21. A

    21. Agent Device

    browser/computer useOpen source★ 5,051 GitHub stars

    Mobile app automation and verification for coding agents on iOS and Android.

    Pricing (as stated): Open source · Mature

22. P

    22. Playwright Skill

    browser/computer useOpen source★ 3,204 GitHub stars

    Playwright automation skill for coding agents.

    Pricing (as stated): Open source · Active

23. T

    23. TuriX CUA

    browser/computer useOpen source★ 3,171 GitHub stars

    Computer-use agent that operates desktop apps.

    Pricing (as stated): Open source · Active

24. S

    24. Spider

    browser/computer useOpen source + cloud★ 2,784 GitHub stars

    Fast Rust web crawler for collecting data for agents and LLMs.

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

25. U

    25. Unbrowse

    browser/computer useOpen source★ 797 GitHub stars

    Turns websites into APIs agents can call.

    Pricing (as stated): Open source · Active

FAQ

What are the best open-source browser agents?

Ranked by tracked GitHub stars, the top open-source browser agents in our directory are Browser Use, Crawl4AI, Chrome DevTools MCP, UI-TARS-desktop, Playwright MCP. Stars measure popularity, not fit, so compare a few against your own task.

How many open-source browser agents does AgentScout list?

28 tools match. This page shows the top 25. Pricing mix on this page: Open source (19), Open source + cloud (6).

How much do these tools cost?

Pricing is what each maker states on their site. Open-source tools are free to self-host but may need a paid model API key or offer paid cloud plans; freemium tools have a free plan with limits. Check each official site.

Where can I see every tool for browsing the web?

Our task page lists all 40 tools we match to browsing the web.

Related: All tools for browsing the web · Best AI Browser Agents · browser/computer use (24) · voice (2) · MCP & infra (1) · personal agents (1)

Similar searches: Free AI browser automation tools · AI computer-use agents

By role: For AI engineers

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