head to head · open source
Invoice Ninja vs Flowglad
Invoice Ninja has 10,464 GitHub stars, 2,793 forks, 945 open issues and last shipped yesterday. Flowglad has 0 stars, 0 forks, 0 open issues and last shipped —. Invoice Ninja leads on adoption by 0% (10,464 vs 0 stars). Invoice Ninja is written in PHP under a custom or non-standard licence; Flowglad is written in various languages under a licence not recorded in this registry. Invoice Ninja has attracted 27% as many forks as stars, Flowglad 0%. Invoice Ninja 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
| Invoice Ninja | Flowglad | |
|---|---|---|
| GitHub stars | ★ 10K | ★ 0 |
| License | Custom / other | Custom / other |
| Written in | PHP | — |
| Last push | 2026-11-02 | — |
| Forks | ⑂ 2.8K | ⑂ 0 |
| 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 Flowglad if
- You want the Flowglad feature set and don't need the biggest community
- You evaluated both and Flowglad 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 Flowglad
read the full Flowglad overview →
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Frequently asked questions
Is Invoice Ninja or Flowglad more popular?
Invoice Ninja has 10,464 GitHub stars and Flowglad has 0. Invoice Ninja has the larger community by that measure.
Are Invoice Ninja and Flowglad free?
Neither Invoice Ninja nor Flowglad declares a licence in this registry, so check each project's own repository before relying on either for a commercial use. Both are free to self-host.
What is the difference between Invoice Ninja and Flowglad?
Invoice Ninja is written in PHP and Flowglad in various languages. 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 Flowglad?
Choose Invoice Ninja if you want the larger community (10,464 stars) or its Custom / other licence terms. Choose Flowglad if its feature set, stack or Custom / other licence fits better. Both are self-hostable.