
browser-harness
Self-healing browser harness that enables LLMs to complete any task.
The Lens
Browser Harness gives LLMs raw access to Chrome through a single WebSocket connection. No abstraction layer, no pre-built recipes, just direct CDP (Chrome DevTools Protocol) control. When the agent encounters something it cannot do, it writes new helper functions mid-task. Self-healing browser automation.
The entire codebase is under 600 lines of Python. Connect to Chrome with remote debugging enabled, and your agent can navigate, click, fill forms, extract data, and extend its own capabilities on the fly. From the same team that built the browser-use framework, this is the stripped-down version for agents that need complete freedom.
Developers building AI agents that interact with websites: this is the thinnest possible layer between your LLM and a real browser. The free tier at cloud.browser-use.com gives you 3 concurrent remote browsers for testing without managing Chrome instances.
The catch: "complete freedom" means no guardrails. Your agent can navigate anywhere, click anything, submit forms. You need your own safety layer if you are pointing this at production accounts.
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Free vs Self-Hosted vs Paid
open core## Free Tier Core harness MIT licensed. Full local functionality. 3 free concurrent remote browsers via cloud.browser-use.com.
## Self-Hosted Run Chrome with remote debugging locally. Zero cost beyond compute.
## Paid cloud.browser-use.com offers managed remote browsers beyond the free tier. Pricing not publicly listed.
Core is free and MIT. Remote browser hosting has a free tier. Local use costs nothing.
License: MIT License
Use freely, including commercial. Just keep the license.
Commercial use: ✓ Yes
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- Browser Use (Organization)
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