CSS Peeper - Smart CSS viewer tailored for Designers.
Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
Tailwind CSS - A utility-first CSS framework for rapidly building custom user interfaces.
SQLite - SQLite Home Page
Purgecss - Easily remove unused CSS
PouchDB - Open-source JavaScript database inspired by Apache CouchDB that's designed to run well within the browser