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Browser Use vs Nanobrowser: catalog facts
Browser Use	Nanobrowser
Freemium The core library is free and open source under MIT; a separate hosted cloud service is…	Free Free and open source; you pay your chosen LLM provider for API usage.
Windows, macOS, Linux, Command line	Browser extension
MIT licensed and self-hostable for full control over agent browsing Widely adopted with a large, active GitHub community	Runs inside your own browser Bring your own LLM API key
Requires your own LLM API access to power the agent's decisions Automation reliability depends on the structure of the target website	Needs a paid API key from a model provider Chrome-focused
Self-hosted, Downloadable app	Browser extension
Open source	Open source
License: MIT	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.