Kimai by kimai
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
About Kimai
From the project's README at github.com/kimai/kimai. Lightly cleaned for readability; for the full source see the upstream repo.
Kimai is a professional grade time-tracking application, free and open-source. It handles use-cases of freelancers as well as companies with dozens or hundreds of users. Kimai was build to track your project times 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 - multi-timezones - multi-language (over 30 translations existing!), authentication via SAML/LDAP/Database, two-factor authentication (2FA) with TOTP, customizable role and team permissions, responsive design, user/customer/project specific rates, advanced search & filtering, money and time budgets, advanced reporting, support for plugins and so much more. Links
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 4.6k | github.com/kimai/kimai |
| GitHub forks | 771 | github.com/kimai/kimai |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 9.6 years | since Oct 2016 |
| Last commit | 2 days ago | May 4, 2026 |
| Releases shipped | 178 | last: 10 days ago |
| Security policy | SECURITY.md | declared by maintainers |
| Funding links | 5 | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
Security advisories
GHSA-vrqv-52x7-rm4v. What people say on Hacker News
Ready to self-host Kimai?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
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