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buku vs nb: catalog facts
buku	nb
Free Free and open source under the GPL-3.0 licence.	Free Free and open source.
Self-hosted, Command line	Windows, macOS, Linux, Command line
Fast search with regex and deep scan options Imports bookmarks from browsers and fetches page metadata	Plain text notes with Git-backed versioning and sync Bookmarking and archiving alongside notes
Primarily a command-line tool Web interface is a separate component to set up	Terminal-first workflow; the web interface runs locally Windows needs WSL, MSYS or Cygwin
Downloadable app, Self-hosted	Downloadable app
Open source	Open source
License: GPL-3.0	License: AGPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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