Browser Harness vs Steel
Side-by-side comparison of two AI agent tools
B
Browser Harnessopen-source
Browser Harness | Self-healing harness that enables LLMs to complete any task.
Steelopen-source
π₯ Open Source Browser API for AI Agents & Apps. Steel Browser is a batteries-included browser sandbox that lets you automate the web without worrying about infrastructure.
Metrics
| Browser Harness | Steel | |
|---|---|---|
| Stars | 18.2k | 7.7k |
| Star velocity /mo | 1.5k | 155.77540106951872 |
| Commits (90d) | 204 | 10 |
| Releases (6m) | 10 | 2 |
| Overall score | 0.721921243784222 | 0.5492637697035601 |
Pros
- +Multi-client support allows integration with Puppeteer, Playwright, or Selenium for maximum flexibility
- +Comprehensive session management automatically handles browser state, cookies, and storage persistence
- +Built-in anti-detection capabilities with stealth plugins and fingerprint management help avoid bot blocking
Cons
- -Public beta status indicates the platform is still evolving and may have stability issues
- -Browser automation inherently resource-intensive and can be complex to debug at scale
- -Requires understanding of browser automation concepts and may have learning curve for new users
Use Cases
- β’AI agents that need to interact with dynamic websites, fill forms, or navigate complex user interfaces
- β’Web scraping projects requiring session persistence, proxy rotation, and anti-detection measures
- β’Automated testing scenarios where browser state management and debugging capabilities are essential
FAQ
- Which is more popular, Browser Harness or Steel?
- Browser Harness has more GitHub stars (18,244 vs 7,714).
- Which is more actively developed, Browser Harness or Steel?
- Browser Harness had more commits in the last 90 days (204 vs 10).
- Should I use Browser Harness or Steel?
- Compare their capabilities, limitations and "best for" notes above. Both are open source, so trying each on a small task is the fastest way to decide.