arbtt vs Kimai2

A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.

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FeaturearbttKimai2
CategoryTime TrackingProject Management & Tasks
LicenseGPL-2.0MIT
LanguageHaskellPHP
Setup difficultyMediumEasy
Min. RAM128 MB200 MB
Deploymentbinary, sourcebare-metal
GitHub stars★ 354★ 4,871
First released20092023
ReplacesRescueTime, ManicTimeHamster, RescueTime, Toggl Track

Why pick each one

Choose arbtt if…

  • Released under the GPL-2.0 license
  • Written in Haskell
  • Tiny footprint — runs in 128 MB RAM
arbtt details

Choose Kimai2 if…

  • Released under the MIT license
  • Easy to set up — beginner-friendly
  • Active community (4.9k GitHub stars)
  • Written in PHP
Kimai2 details

Frequently asked questions

Is arbtt or Kimai2 better?

Kimai2 is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider arbtt if its specific feature set fits your needs better.

Are arbtt and Kimai2 free and open-source?

Yes. arbtt is licensed under GPL-2.0 and Kimai2 under MIT. Both can be self-hosted at no software cost.

Can I run arbtt and Kimai2 with Docker?

arbtt: check the project docs for container support. Kimai2: check the project docs for container support.

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