Kimai - the open source time-tracker application with a mobile-first approach (read more at the official website).

Programming language: PHP
License: GNU Affero General Public License v3.0
Tags: Human Resources Management (HRM)     Timetracking     Freelancer    
Latest version: v1.14

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Kimai - time-tracker

Kimai is a free, open source and online time-tracking software designed for small businesses and freelancers. It is built with modern technologies such as Symfony, Bootstrap, RESTful API, Doctrine, AdminLTE, Webpack, ES6 and [many](composer.json) [more](package.json).



  • PHP 7.4, 8.0 or 8.1
  • MariaDB or MySQL
  • A webserver and subdomain
  • PHP extensions: gd, intl, json, mbstring, pdo, xsl, zip


The evolution of the most known(?) open source project time-tracker Kimai. It is stable, production ready and ships with many advanced features, including but not limited to:

JSON API, invoicing, data exports, multi-timer and punch-in punch-out mode, tagging, multi-user and multi-timezones, authentication via SAML/LDAP/Database, customizable role and team permissions, responsive and ready for your mobile device, user/customer/project specific rates, advanced search & filtering, money and time budgets, reporting, support for plugins and so many more.


Updating Kimai

  • Update Kimai - get the latest version
  • [UPGRADING guide](UPGRADING.md) - version specific steps


Roadmap and releases

You can see a rough development roadmap in the Milestones sections. It is open for changes and input from the community, your ideas and questions are welcome.

Kimai uses a rolling release concept for delivering updates. You don't have to wait for the next official release, upgrade it at any time from the master branch, which is always deployable - release tags are simple snapshots of the development version.

Release versions will be created on a regular basis, every couple of weeks. Every code change, whether it's a new feature or a bugfix, will be done on the master branch. Kimai is actively developed in my spare time, I put my effort into the software instead of back-porting changes.


You want to contribute to this repository? This is so great! The best way to start is to open a new issue for bugs or feature requests or a discussion for questions, support and such.

In case you want to contribute, but you wouldn't know how, here are some suggestions:

  • Spread the word: More user means more people testing and contributing to Kimai - which in turn means better stability and more and better features. Please vote for Kimai on platforms like Slant, Product Hunt, Softpedia or AlternativeTo, you can tweet about it, share it on LinkedIn, reddit or any of your favorite social media platforms. Every bit helps!
  • Answer questions: You know the answer to another user's problem? Share your knowledge!
  • Make a feature request: Something can be done better? Something essential missing? Let us know!
  • Report bugs
  • You don't have to be programmer to help. The documentation and translation could use some love as well.
  • Sponsor the project, free software still costs money

There is one simple rule in our "Code of conduct": Don't be an ass!

*Note that all licence references and agreements mentioned in the Kimai 2 README section above are relevant to that project's source code only.