Alternatives

Products that do what Browser Arena does

Open-source benchmarks for cloud browser infrastructure

1. 1
   Web Bench▲138

   A 10x better benchmark for AI browser agents

   2025

2. 2
   Competitors.Site▲319

   UX patterns organized by industry. New industry every week

   2018

3. 3AR
   A remote browser product, open-sourced▲253

   2019 · github.com

4. 4
   WebBrain▲117

   The sidebar agent for the rest of us

   24d ago · webbrain.one

5. 5
   Browserbase▲60

   A web browser for your AI

   2025

6. 6
   Speedometer 3.0▲131

   Benchmarking app performance on the modern web

   2024

7. 7
   Horizon 1.0▲316

   Realtime, open-source backend for JavaScript apps

   2016

8. 8DA
   Drogon – A C++14/17 based high performance HTTP application framework▲189

   2019 · github.com

9. 9FO
   Falco – Open-Source Web Performance Monitoring▲119

   2019 · github.com

10. 10
    Open Benchmarks▲190

    Live SaaS metric benchmarks from over 600 companies

    2016

11. 11
    Legacy Browser▲76

    A lightweight, fast and secure browser that rewards users

    2021

12. 12
    Open Comet▲117

    The autonomous AI browser agent for deep research & tasks

    Apr 2026

13. 13
    Source Lair▲136

    SourceLair lets people develop software in their browsers.

    2015

14. 14
    Open Browser Use▲112

    Open-source browser automation for local AI agents

    May 2026

15. 15NA
    Native apps for the browser▲152

    2013 · arc.io

16. 16
    BrowserStack▲100

    Live, Web-Based Browser Testing.

    2014

17. 17
    Web Speed▲118

    Kill the 'Token Tax.' 90% cheaper agents.

    May 2026

18. 18
    browserless.io▲143

    The full-code, no-ops tool for browser automation

    2023

19. 19
    Realm▲127

    HTML framework for building MVP

    2023

20. 20OS
    Open-source isolated browser, free for journalists etc.▲66

    2020 · github.com

21. 21WF
    Work for Performance – Open performance issues on open-source▲103

    2021 · workforperformance.com

22. 22
    Ghost Inspector▲80

    Automated browser testing from the cloud

    2014

23. 23
    Calibre▲64

    Comprehensive web performance monitoring

    2014

24. 24BA
    Browser4 – an open-source browser engine for agents and concurrency▲7

    Hi HN, I’d like to share an open-source project we’ve been working on for a while: Browser4. The motivation came from a recurring frustration: most browser automation tools (Playwright, Selenium, Puppeteer) are excellent for human-written scripts, but start to show friction when used as a core execution layer for AI agents or at very high concurrency. So instead of building “another wrapper around Playwright”, we experimented with a different direction: designing a browser engine where AI agents are first-class citizens. ### What Browser4 is Browser4 is a browser automation engine built on…

    Dec 2025 · github.com

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