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BrowserOS vs Lumos: catalog facts
BrowserOS	Lumos
Free Free and open source.	Free Free to use; requires a local Ollama installation.
Windows, macOS, Linux	Browser extension
Built-in AI agents that act on web pages Can use local models instead of a cloud service	Page summaries and Q&A with local models No data sent to a cloud AI service
Agent features are new and still changing quickly Local models need capable hardware to run well	Needs Ollama running on your computer No new release since December 2024
Downloadable app	Browser extension
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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