Tippy.js - lightweight, pure JavaScript tooltip library
SuperHeroJS - great collection of articles on all aspects of JavaScript. Starting from very basics up to questions of advanced usage, code organisation, testing, tools and performance
Tippy.js - lightweight, pure JavaScript tooltip library
DO_Snapshot - command-line snapshot maker for your DigitalOcean droplets.
MetaBase is the easy, open source way for everyone in your company to ask questions and learn from data.
MailHog - Web and API based SMTP testing, inspired by MailCatcher
Localstack - a fully functional local AWS cloud stack. Develop and test your cloud apps offline!