
Description: Violinist.io is an open source platform for automated testing of Python packages. It helps developers run tests on their packages against multiple Python versions on every commit to GitHub, BitBucket, or GitLab. This allows catching issues early before releasing new package versions.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Libraries.io is an open source repository and API that catalogs software libraries and packages. It tracks over 5 million open source packages from over 40 different package managers. The service allows developers to easily discover libraries and keep track of dependencies and versions across projects.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API