The world's largest directory for open source software. Discover 500+ popular open source alternatives to proprietary software products. 100% free.

A curated collection of the best open source alternatives to everyday SaaS products. Save money with reliable tools hand-picked for you.

To get you started, Opensource.com has compiled a collection of articles introducing you to some of the most popular and useful open source tools for a wide variety of common needs.

The #1 collection of the best free & open source alternatives of popular software. Find the best hand-picked free & open source software.

Jul 22, 2025 · In this article, I’m sharing 12 open-source developer tools that I’ve tested or researched each one replacing a popular proprietary solution. If you value privacy, flexibility, or full control over …

About This is a list of the best free and open source software alternatives for security and privacy. The list is divided into categories and subcategories. The software is listed alphabetically within each …

Aug 29, 2024 · With that, I have compiled 17 useful open-source tools that can replace many expensive paid tools you might be using, with effectiveness that is equivalent to, or even superior to, the...