head to head · open source
Invoice Ninja vs invoicerr
Invoice Ninja has 10,464 GitHub stars, 2,793 forks, 945 open issues and last shipped yesterday. invoicerr has 733 stars, 67 forks, 41 open issues and last shipped yesterday. Invoice Ninja leads on adoption by 1,328% (10,464 vs 733 stars). Invoice Ninja is written in PHP under a custom or non-standard licence; invoicerr is written in TypeScript under AGPL-3.0. Invoice Ninja has attracted 27% as many forks as stars, invoicerr 9%. invoicerr was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (einvoicing), so they are genuine substitutes rather than adjacent tools.
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
| Invoice Ninja | invoicerr | |
|---|---|---|
| GitHub stars | ★ 10K | ★ 733 |
| License | Custom / other | AGPL-3.0 |
| Written in | PHP | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 2.8K | ⑂ 67 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Invoice Ninja if
- You weight community size — 10K stars and counting
- You want the Custom / other license terms
- Your stack matches PHP
- You value the larger contributor base for long-term maintenance
pick invoicerr if
- You want the invoicerr feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and invoicerr fits your workflow better
About Invoice Ninja
Invoice Ninja 5 Invoice Ninja Version 5 is here! We've taken the best parts of version 4 and added the most requested features to create an invoicing application like no other. Check the Invoice Ninja YouTube Channel to get up to speed, or try the Demo now. Choose your setup Hosted: Our hosted version is a Software as a Service (SaaS) solution. You're up and running in under 5 minutes, with no need to worry about hosting or server infrastructure. Self Hosted: For those who prefer to manage their own hosting and server infrastructure. This version gives you full control and flexibility. All Pro and Enterprise…
read the full Invoice Ninja overview →
About invoicerr
Invoicerr Invoicerr is a simple, open source invoicing application designed to help freelancers manage their quotes and invoices efficiently. It provides a clean interface for creating, sending, and tracking quotes and invoices — so you get paid faster, with less hassle. 📢 Maintainer availability I no longer have enough personal time to work on Invoicerr full time (studies + job). The project is still open, and I can continue to review and manage community pull requests, but development speed from my side will be slower. ✨ Features Create and manage invoices Create and manage quotes (convertible to invoices)…
read the full invoicerr overview →
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Frequently asked questions
Is Invoice Ninja or invoicerr more popular?
Invoice Ninja has 10,464 GitHub stars and invoicerr has 733. Invoice Ninja has the larger community by that measure.
Are Invoice Ninja and invoicerr free?
Both are open source. Invoice Ninja has no licence declared in this registry, and invoicerr is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Invoice Ninja and invoicerr?
Invoice Ninja is written in PHP and invoicerr in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Invoice Ninja or invoicerr?
Choose Invoice Ninja if you want the larger community (10,464 stars) or its Custom / other licence terms. Choose invoicerr if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.