Firefly III
CuratedSelf-hosted personal finance manager to track accounts, budgets, and bills, with reports and rules.
Curated listing — added by OSSDrop, not the maker.
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#1 Tool of the Day· Jul 25, 2026
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[](https://ossdrop.com/tool/firefly-iii)Frequently asked
What is Firefly III?
Firefly III is an open-source finance & business tool — Self-hosted personal finance manager to track accounts, budgets, and bills, with reports and rules. It is written in PHP.
Is Firefly III free and open source?
Yes. Firefly III is free and open source, released under the AGPL-3.0 license. You can view and contribute to the source at https://github.com/firefly-iii/firefly-iii.
What language is Firefly III written in?
Firefly III is primarily written in PHP.
What are open-source alternatives to Firefly III?
Other open-source finance & business tools on OSSDrop include Twenty, Odoo, Metabase, Qlib.
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