Compare software

zk vs nb: catalog facts
zk	nb
Free Free to download and use from GitHub.	Free Free and open source.
Command line	Windows, macOS, Linux, Command line
Notes stay as plain Markdown files Works with any text editor	Plain text notes with Git-backed versioning and sync Bookmarking and archiving alongside notes
Command-line only, no graphical interface Assumes comfort with the terminal	Terminal-first workflow; the web interface runs locally Windows needs WSL, MSYS or Cygwin
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: AGPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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