BTCPay Server vs Firefly III

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

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FeatureBTCPay ServerFirefly III
CategoryBudgeting & FinanceBudgeting & Finance
LicenseMITAGPL-3.0
LanguageC#PHP
Setup difficultyMediumMedium
Min. RAM512 MB512 MB
Deploymentbare-metaldocker, bare-metal, source
GitHub stars★ 7,696★ 24,254
First released20262016
ReplacesMint, YNAB

Why pick each one

Choose BTCPay Server if…

  • Released under the MIT license
  • Mature project with 7.7k GitHub stars
  • Written in C#
  • Lightweight — runs in 512 MB RAM
BTCPay Server details

Choose Firefly III if…

  • Powerful budgeting features
  • Strong API for automation
Firefly III details

Frequently asked questions

Is BTCPay Server or Firefly III better?

Neither is universally better. Firefly III has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.

Are BTCPay Server and Firefly III free and open-source?

Yes. BTCPay Server is licensed under MIT and Firefly III under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run BTCPay Server and Firefly III with Docker?

BTCPay Server: check the project docs for container support. Firefly III: yes.

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