Cal.com (formerly Calendso) is the open source Calendly alternative.

nominated Open Source

Powerful, customizable Zsh prompt, your own spaceship 🚀.

experts

Open Source backend with realtime database, authentication, file storage and admin dashboard, all compiled in 1 portable executable.

experts Open Source free

The ERP Software that helps you take full control of your business. ERPNext is both powerful and easy to use.

experts Open Source

Matomo is an open-source web analytics platform.

nominated Open Source

LibHunt tracks mentions of software libraries on relevant social networks. Based on that data, you can find the most popular projects and their alternatives.

experts free

Open Source API Test Case and Data Mock Generation using AI for Developers.

experts Open Source free

Discover Open Source Alternatives to Popular Software.

experts Open Source

Free and open source library manager for all your games.

experts Open Source free

Website analyzer and SEO audit tool.

experts paid Free Trial $19.0 / One-off

A free, fast, and reliable Open Source CDN for npm and GitHub with the largest network and best performance from all OSS CDNs. Serving 100 billion requests per month.

experts Open Source free

Uptrace is an open source APM tool that supports distributed tracing, metrics, and logs. You can use it to monitor applications and set up automatic alerts to receive notifications via email, Slack, Telegram, and more.

experts Open Source freemium $30.0 / Monthly