Q-Stats - Get free marketing insights for every question on Quora.
SonarQube - SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.
Seoxan - check seo report for any website, alexa ranking, server information, meta tags, authority, page speed and more
WhiteSource - Find & fix security and compliance issues in open source libraries in real-time.
HypeStat - HypeStat is free statistics and analytics service, where you can find information about every website.
Snyk - Snyk helps you use open source and stay secure. Continuously find and fix vulnerabilities for npm, Maven, NuGet, RubyGems, PyPI and much more.