regex101 : Free PCRE-based regular expression debugger with real time explanation, error detection and highlighting.
Sympl : Sympl is a collection of open-source scripts and templates which allow you to automatically and efficiently configure your website and email on a virt...
Dark Patterns Library : A Dark Pattern is a type of user interface that has been carefully crafted to trick users into doing things, such as buying insurance with their purch...
PrePostPrint : PrePostPrint highlights experimental publications made with free software.
