Open source fintech projects
Every project in the registry tagged fintech, ranked by real GitHub adoption.
Open source payment orchestrator for global transactions
Open-source financial terminal for data-driven insights
Transform complex usage data into accurate, real-time billing
Free online accounting for small businesses and freelancers
Track, analyze, and optimize your investments effortlessly
This repository contains opportunities for you to apply to more than 400 product base companies(NOT JUST FAANGM) & good start-ups.
Real-time usage metering and billing for AI companies
ACH implements a reader, writer, and validator for Automated Clearing House (ACH) files. The HTTP server is available in a Docker image and the Go package is av
Open-source business management system with ERP, POS, invoicing, and CMS features. Laravel-based, Docker-ready. Still in active development.
Related tags
Frequently asked questions
How many open source fintech projects are there?
This registry tracks 9 projects tagged fintech, with 113,931 GitHub stars between them. The most-adopted is Hyperswitch at 43,615 stars.
Are these fintech projects free to use?
Yes — 7 of the 9 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which fintech project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these fintech projects still maintained?
8 of the 9 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.