head to head · open source
Firefly III vs YAFFA
Firefly III has 25,061 GitHub stars, 2,361 forks, 169 open issues and last shipped yesterday. YAFFA has 114 stars, 11 forks, 12 open issues and last shipped yesterday. Firefly III leads on adoption by 21,883% (25,061 vs 114 stars). Firefly III is written in PHP under AGPL-3.0; YAFFA is written in PHP under MIT. Firefly III has attracted 9% as many forks as stars, YAFFA 10%. YAFFA was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Firefly III | YAFFA | |
|---|---|---|
| GitHub stars | ★ 25K | ★ 114 |
| License | AGPL-3.0 | MIT |
| Written in | PHP | PHP |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 2.4K | ⑂ 11 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Firefly III if
- You weight community size — 25K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches PHP
- You value the larger contributor base for long-term maintenance
pick YAFFA if
- You want the YAFFA feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches PHP
- You evaluated both and YAFFA fits your workflow better
About Firefly III
[![Packagist][packagist shield]][packagist url] [![License][license shield]][license url] [![Stargazers][stars shield]][stars url] [![Donate][donate shield]][donate url] Firefly III A free and open source personal finance manager Explore the documentation View the demo · Report a bug · Request a feature · Ask questions Billionaires and fascists are breaking democracies and international alliances. Their profits are costing us our safety. (Digital) sovereignty is more important than ever. Firefly III is free open source software and originates from, and lives in the European Union (🇳🇱). Support your local…
read the full Firefly III overview →
About YAFFA
Yet Another Free Financial Application (YAFFA 🍊) About Yaffa Yaffa is a personal finance web application, focusing on the support of long term financial planning. Yaffa is a self hosted web application, written in PHP, using Laravel framework. By hosting your own app instance, your financial data is not uploaded to the cloud, and shared with any third parties. Read more about YAFFA at Key features Support multiple currencies. There is a default currency, which is used on dashboards and charts. Currency rates are automatically updated daily. YAFFA utilizes the free Frankfurter service, requiring no API key or…
read the full YAFFA overview →
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Frequently asked questions
Is Firefly III or YAFFA more popular?
Firefly III has 25,061 GitHub stars and YAFFA has 114. Firefly III has the larger community by that measure.
Are Firefly III and YAFFA free?
Both are open source. Firefly III is licensed under AGPL-3.0 and YAFFA under MIT. Neither carries a licence fee.
What is the difference between Firefly III and YAFFA?
Firefly III is written in PHP and YAFFA in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Firefly III or YAFFA?
Choose Firefly III if you want the larger community (25,061 stars) or its AGPL-3.0 licence terms. Choose YAFFA if its feature set, stack or MIT licence fits better. Both are self-hostable.