Open source saas projects
Every project in the registry tagged saas, ranked by real GitHub adoption.
Modern payment infrastructure for digital products and SaaS
Create powerful forms with ease and flexibility
Free, open-source visual website builder for designers
Secure secret management with public key encryption
💬 A privacy-friendly and customizable Disqus (comment system) alternate. 注重隐私保护和定制化的评论系统。
Real-time event tracking and response for tech products
Frequently asked questions
How many open source saas projects are there?
This registry tracks 6 projects tagged saas, with 18,804 GitHub stars between them. The most-adopted is Polar at 10,270 stars.
Are these saas projects free to use?
Yes — 5 of the 6 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 saas 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 saas projects still maintained?
4 of the 6 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.