Best Open Source Alternatives to FreshBooks

Compare the best free and open-source alternatives to FreshBooks — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated August 2026 · 3 alternatives

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FreshBooks alternatives compared

Open-source alternatives to FreshBooks, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Firefly III	24,197	AGPL-3.0	LinuxmacOSWindowsDocker	Yes	Jul 2026	Visit
Akaunting	10,010	GPL-3.0	LinuxmacOSWindowsDocker	Yes	Jul 2026	Visit
Crater	8,331	AGPL-3.0	LinuxmacOSWindowsDocker	Yes	Aug 2024	Visit