Zk

Judgement

What it is

Developer tool

What it does

A command-line note-taking assistant for plain-text Zettelkasten notes, with templates, linking, search and an LSP server for editor integration.

Adopt it when

You keep Markdown notes in your terminal editor and want Zettelkasten-style linking and search.

Watch out

Pre-1.0 and terminal-only, so it suits technical users.

Ready for

Usable

Runs as

Command line

Built with

Go and SQLite

How established

Established: started 5 years ago, latest release v0.15.7.

What the license allows

Use inside your business is unrestricted, but anything you distribute that includes it must be released under the same license.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Zk → Go → runs on a microchip

How compilers were built, back to punched paper tape

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