Check a Site - Scan websites for over 700 quality problems
OpenGrok - OpenGrok is a fast and usable source code search and cross reference engine.
Beta Family - 50,000 testers to test your app
GrepCode - GrepCode.com is a code search engine built by developers for developers to search and browse open...
Sqreen - Sqreen is a web application security monitoring and protection solution helping companies protect their apps and users from attacks. Get started in minutes.
Sourcegraph - Sourcegraph is a free, self-hosted code search and intelligence server that helps developers find, review, understand, and debug code. Use it with any Git code host for teams from 1 to 10,000+.