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Google KeepImapNotes3
Free

Free to use with a Google account.

 Free

Free and open source under the GPL-3.0.

Web Android
  • Quick capture of notes and checklists
  • Reminders built in
  • Syncs through any IMAP mailbox you already have
  • Notes stored as standard HTML emails
  • Requires a Google account
  • Notes are stored on Google's servers
  • Needs an email account with IMAP access
  • Android only
Web application, Hosted service Downloadable app
Closed source Open source
License not stated License: GPL-3.0
Account needed Account 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.