Compare software

Foam vs zk: catalog facts
Foam	zk
Free Free and open source with no subscription.	Free Free to download and use from GitHub.
Windows, macOS, Linux	Command line
Notes stored as standard Markdown files Wikilinks, backlinks, embeds and graph view	Notes stay as plain Markdown files Works with any text editor
Requires Visual Studio Code No dedicated mobile app	Command-line only, no graphical interface Assumes comfort with the terminal
Downloadable app	Downloadable app
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 23, 2026	Official website Full listing and sources Checked September 24, 2026

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