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

Programming language: PHP
License: MIT License
Tags: Human Resources Management (HRM)     Timetracking     Freelancer    
Latest version: v1.14

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Kimai 2 - 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 etc.



  • PHP 7.2.9 or higher (PHP 8 not yet)
  • MariaDB or MySQL
  • Webserver (nginx, Apache)
  • Some PHP extensions, see [composer.json](composer.json) or here


This is the new version of the open source time tracker Kimai. It is stable and production ready, ships with a lot of 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 permissions, responsive and ready for your mobile device, user specific rates, advanced search & filtering, money and time budgets with report, support for plugins and 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 2 uses a rolling release concept for delivering updates. You can upgrade Kimai at any time, you don't need to wait for the next official release. The master branch is always deployable, release tags are only snapshots of the current development version.

Release versions will be created on a regular base (approx. one release every 4-8 weeks). Every code change, whether it's a new feature or a bug fix, will be done on the master branch. Kimai is actively developed in my spare time and I put my effort into the software instead of backporting changes for old versions. The only exception is a critical security issue, which I would fix in the latest stable version as well.


Kimai 2 is developed with modern frameworks like Symfony v4, Doctrine, AdminLTEBundle (based on AdminLTE theme) and [many](composer.json) [more](package.json).

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