1 self-hostable option you can run on your own server, compared on facts from GitHub (fetched Oct 21, 2026).
| Tool |  Kimai |
|---|---|
| GitHub stars | 5,086 |
| License | AGPL-3.0 |
| Last push | Oct 21, 2026 Active |
| Forks | 862 |
| Open issues + PRs | 357 |
| Main language | PHP |
| Links | Repo ยท Website |
Highlighted cells mark the highest star count and the most recent push. Source: GitHub REST API, per-tool links on each tool page. Copyleft licenses (AGPL/GPL) require sharing modifications if you distribute or (AGPL) serve them; check the repo license before deploying.
Kimai is the #1 open-source time-tracking application. From freelancers to companies and organisations - everyone can manage timesheets, generate reports, create invoices and so much more... Web-based multi-user application, available as On-Premise or SaaS version: https://www.kimai.org
Modern open-source time-tracking app