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Tockklog
Free

Free and open source under the GPL-3.0-or-later license.

 Free

Free and open source under the MIT licence.

Windows, macOS, Linux, Command line Windows, macOS, Linux, Command line
  • Stores activities in plaintext files or several other backends
  • Includes an interactive terminal calendar
  • Time data stays in readable plain-text files you own
  • Published file format specification in the public domain
  • System calendar synchronization is available only on macOS
  • Command line only, no graphical interface
  • Requires learning the file syntax
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-or-later License: MIT
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 8, 2026

Checked October 2, 2026

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