Firefly III vs Kimai
Both in Finance & invoicing — compared item by item
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
| Firefly III | Kimai | |
|---|---|---|
| Stars | ★ 24.7k | ★ 5.0k |
| Language | PHP | PHP |
| License | AGPL-3.0 | AGPL-3.0 |
| Last updated | 2026-09-22 | 2026-09-22 |
| Usage | 🐳 Self-hosted | 🐳 Self-hosted |
| Platforms | — | — |
| Category | Finance & invoicing | Finance & invoicing |
How to choose
- They support exactly the same usage modes; the difference is in ecosystem and implementation details.
- Firefly III has a clearly larger community (24.7k vs 5.0k), so answers, plugins and tutorials are easier to find.