About OSSAlt

OSSAlt is a curated directory of open source alternatives to popular proprietary software. We believe everyone should have access to high-quality tools without vendor lock-in.

Why Open Source?

• Freedom — Own your data and customize the tools you rely on.
• Transparency — Inspect the code, verify security, and contribute improvements.
• Cost — Eliminate recurring SaaS fees by self-hosting proven alternatives.
• Community — Benefit from thousands of contributors building software together.

How It Works

We track popular SaaS products and map them to their best open source counterparts. Each project is evaluated on GitHub activity, community health, license, and self-hosting capability so you can make an informed decision.

Get Involved

OSSAlt is itself open source. If you know of an alternative we are missing or want to improve the site, contributions are welcome.