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

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