Open SaaS
Free open source SaaS starter kitShip your SaaS faster with a free starter
Highlights
What you can do with it
- Launching a subscription product quickly
- Adding auth and payments to a new idea
- Learning a production ready SaaS architecture
How to use it
- 1 Visit opensaas.sh
- 2 Read the documentation and feature list
- 3 Download the kit and deploy it
- 4 Configure authentication, payments, and your database
- 5 Build your features on top of the starter
Who it is for
Pros
- Free and open source
- Covers the boring parts like auth and payments
- No vendor lock in on deployment
Limitations
- You still need development skill to customise it
- Payment and infrastructure costs are separate
- Open source projects change, so upgrades are your job
What Open SaaS is
Open SaaS is a free, open source starter kit for building and launching SaaS applications. Instead of wiring up the same plumbing every time, you start from a project that already includes authentication, payments, an admin dashboard, AI example applications, and a blog. It is written in TypeScript with full stack type safety, ships with an OpenAI integration for AI features, and includes a file upload example that uses AWS S3 signed URLs. The blog runs on Astro with Markdown editing. Because it is open source and avoids lock in, you can host it wherever you like. Documentation, a Discord community, and end to end tests come with it.
What you can do with it
- Start a SaaS project with auth and payments already wired
- Use the AI example apps as a base for your own features
- Upload files through signed URLs without building storage code
- Publish content with the built in Markdown blog
- Deploy to your own hosting with no vendor lock in
Who it is for
- Developers launching a subscription product
- Indie hackers who want the boring parts handled
- Teams that want a production ready TypeScript reference
What to watch out for
Free here means free to use the code, not free to run. You still pay for hosting, your payment provider, and any AI API calls, and those costs grow with users. Customising the kit requires real development skill, so it saves setup time rather than removing the work. As an open source project it will change over time, which means keeping your fork updated is your responsibility. Review the licence and the current docs before you build a business on it, and check the community activity so you know the project is maintained.
FAQ
Is Open SaaS really free?
Yes, it is described as a free and open source starter kit.
What is included?
Authentication, payments, AI example apps, an admin dashboard, file uploads, and a blog.
Can I deploy it anywhere?
Yes, the site says it can be deployed anywhere without vendor lock in.
Why it is free
What the official page says： 免费
Free limits, trial length and features are decided by the official site and can change at any time.
Product preview
Screenshot archived from the listing page, for preview only.
