regex101 : Free PCRE-based regular expression debugger with real time explanation, error detection and highlighting.
2016 Guide to User Data Security : This guide is for the software developer, architect or system administrator who doesn't want to spend a lifetime wading through cryptographic algorith...
Sonar : Sonar is a platform for debugging mobile apps on iOS and Android. Visualize, inspect, and control your apps from a simple desktop interface. Use Sonar...
API Security Checklist : Checklist of the most important security countermeasures when designing, testing, and releasing your API.