head to head · open source
Invoice Ninja vs OpenBudgeteer
Invoice Ninja has 10,464 GitHub stars, 2,793 forks, 945 open issues and last shipped yesterday. OpenBudgeteer has 974 stars, 64 forks, 15 open issues and last shipped 3 days ago. Invoice Ninja leads on adoption by 974% (10,464 vs 974 stars). Invoice Ninja is written in PHP under a custom or non-standard licence; OpenBudgeteer is written in C# under AGPL-3.0. Invoice Ninja has attracted 27% as many forks as stars, OpenBudgeteer 7%. 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.
← all 20902 open source comparisons
Side by side
| Invoice Ninja | OpenBudgeteer | |
|---|---|---|
| GitHub stars | ★ 10K | ★ 974 |
| License | Custom / other | AGPL-3.0 |
| Written in | PHP | C# |
| Last push | 2026-11-02 | 2026-10-31 |
| Forks | ⑂ 2.8K | ⑂ 64 |
| 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 OpenBudgeteer if
- You want the OpenBudgeteer feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches C#
- You evaluated both and OpenBudgeteer 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 OpenBudgeteer
OpenBudgeteer is a budgeting app based on the Bucket Budgeting Principle and inspired by YNAB and Buckets. The Core is based on .NET and the MVVM Pattern, the Front End uses Blazor Server. Documentation Within the Documentation you will find all the details how to install and setup OpenBudgeteer and how it is used. Some sections are still WIP but you should find the most important things that were previously maintained here in the README. Quick Start For a quick ramp up up of OpenBudgeteer using Docker and MariaDB see here. Screenshots
read the full OpenBudgeteer overview →
More in Business Software
Related comparisons
More Finance & Accounting projects
Compare either of these against the rest of the Finance & Accounting field.
Frequently asked questions
Is Invoice Ninja or OpenBudgeteer more popular?
Invoice Ninja has 10,464 GitHub stars and OpenBudgeteer has 974. Invoice Ninja has the larger community by that measure.
Are Invoice Ninja and OpenBudgeteer free?
Both are open source. Invoice Ninja has no licence declared in this registry, and OpenBudgeteer is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Invoice Ninja and OpenBudgeteer?
Invoice Ninja is written in PHP and OpenBudgeteer in C#. 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 OpenBudgeteer?
Choose Invoice Ninja if you want the larger community (10,464 stars) or its Custom / other licence terms. Choose OpenBudgeteer if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.