Invoice Ninja vs Kill Bill

A side-by-side comparison of two self-hosted budgeting & finance options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureInvoice NinjaKill Bill
CategoryBudgeting & FinanceBudgeting & Finance
LicenseElastic-2.0Apache-2.0
LanguagePHPJava
Setup difficultyMediumHard
Min. RAM512 MB2,048 MB
Deploymentdocker, bare-metal, sourcedocker, bare-metal, source
GitHub stars★ 9,979★ 5,656
First released20142010
ReplacesFreshBooks, QuickBooksZuora, Chargebee

Why pick each one

Choose Invoice Ninja if…

  • Comprehensive billing features
  • Many payment gateway integrations
Invoice Ninja details

Choose Kill Bill if…

  • Battle-tested at scale
  • Highly extensible plugins
Kill Bill details

Frequently asked questions

Is Invoice Ninja or Kill Bill better?

Invoice Ninja is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Kill Bill if its specific feature set fits your needs better.

Are Invoice Ninja and Kill Bill free and open-source?

Yes. Invoice Ninja is licensed under Elastic-2.0 and Kill Bill under Apache-2.0. Both can be self-hosted at no software cost.

Can I run Invoice Ninja and Kill Bill with Docker?

Invoice Ninja: yes. Kill Bill: yes.

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