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Google KeepOpenSyncedLists
Free

Free to use with a Google account.

 Free

Free and open source under the GPL-3.0 licence.

Web Android, Self-hosted
  • Quick capture of notes and checklists
  • Reminders built in
  • End-to-end encrypted sync
  • Sync through a server you run yourself
  • Requires a Google account
  • Notes are stored on Google's servers
  • Syncing requires setting up your own server
  • Little documentation on the project site
Web application, Hosted service Downloadable app, Self-hosted
Closed source Open source
License not stated License: GPL-3.0-or-later
Account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked October 2, 2026

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