ImageOptim - Faster web pages and apps.
CKEditor - Real-time collaborative future-ready rich text editor
Node.js - Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications
Summernote - Summernote is a JavaScript library that helps users create WYSIWYG editors online.
Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
Froala Editor - Froala Editor is a WYSIWYG HTML editor that enables rich text editing capabilities for the applications.