Logbook

Logbook is a notes server with real clients: markdown editing, backlinks, tags and full-text search, syncing instantly between desktop and mobile apps that work offline first.

Worth knowing before you commit:

• Notes are stored as portable markdown — leaving is always possible.
• End-to-end encryption is available per notebook.
• Web clipper and share-sheet integrations feed it from anywhere.

A second brain with a landlord you trust: you.