Here you can find a collection of cool and useful tools and resources I have found. I also have a full list of articles/posts I've found interesting available on my reading list.
minimaxir/big-list-of-naughty-strings - The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.
felixrieseberg/macintosh.js - A virtual Apple Macintosh with System 8, running in Electron. Yes, that electron...