Comparison | Browser Harness
agent-browser vs Browser Harness.
Both are browser CLIs for coding agents. Browser Harness starts in your real Chrome, logged in as you, and the agent writes any tool it is missing.
Side by side
Browser Harness agent-browser
Browser: Browser Harness: Your Chrome, with your logins; agent-browser: Headless Chrome by default. Your Chrome via --auto-connect or --profile
Setup: Browser Harness: Paste one prompt into your agent; agent-browser: npm install -g agent-browser, then agent-browser install
Missing tool: Browser Harness: The agent writes it and keeps it; agent-browser: Large built-in command set, extended by plugins
Cloud browsers: Browser Harness: Browser Use cloud, $0.02 per browser-hour; agent-browser: Providers include Browserbase, Browserless, Browser Use and Kernel
License: Browser Harness: MIT; agent-browser: Apache-2.0
Pick agent-browser for a fast headless CLI with a fixed, documented command set.
Questions
Can agent-browser use Browser Use cloud browsers?
Yes. Browser Use is one of its cloud providers, so you get the same cloud browsers either way.
Which agents does Browser Harness work with?
Claude Code, Codex, Cursor, Gemini CLI, Hermes Agent and OpenClaw. Anything that can run a shell command.
What does it cost?
Nothing. Browser Harness is open source under MIT, and using your own Chrome is free. Cloud browsers are $0.02 per browser-hour if you want them.
You will never use
the browser again.