What does Invoice Ninja replace?

Invoice Ninja is a free alternative to FreshBooks ($276/yr).

Is Invoice Ninja open source?

Not by the OSI definition. Invoice Ninja uses the Elastic License 2.0, a source-available license: the code is public, but the license isn't OSI-approved.

Does Invoice Ninja run on Linux?

Yes (self-hosted server; web UI).

Can you self-host Invoice Ninja?

Yes. Invoice Ninja is a server app you run on your own server.

Invoice Ninja

A free, source-available alternative to FreshBooks. Switching saves $276/yr at list price.

Checked Oct 17, 2026 · How we check

Invoice Ninja

Self-hosted server

Source-available · Elastic License 2.0 Linux Self-hostable

invoiceninja/invoiceninja10.3k★last push Oct 13, 2026checked Oct 17, 2026

Self-host

Runs on your own Linux server. Setup docs are on invoiceninja.com.

Invoice Ninja: questions

What does Invoice Ninja replace?: Invoice Ninja is a free alternative to FreshBooks ($276/yr).
Is Invoice Ninja open source?: Not by the OSI definition. Invoice Ninja uses the Elastic License 2.0, a source-available license: the code is public, but the license isn't OSI-approved.
Does Invoice Ninja run on Linux?: Yes (self-hosted server; web UI).
Can you self-host Invoice Ninja?: Yes. Invoice Ninja is a server app you run on your own server.

Invoice Ninja ↗

Invoice Ninja: questions

One cancellation a week.

Invoice Ninja