Notepin - Extremely simple note-taking + blogging ✍️
CKEditor - Real-time collaborative future-ready rich text editor
Buno - Simple Note Taking - Simple, minimal & easy note-taking
Summernote - Summernote is a JavaScript library that helps users create WYSIWYG editors online.
QuickJots - Jot down quick notes and auto-save them with QuickJots. Use GitHub Flavoured Markdown to easily embed images, or even task-lists to track to-dos. It's private — all notes stay local; no login or downloads are needed. There's a dark mode too!
Froala Editor - Froala Editor is a WYSIWYG HTML editor that enables rich text editing capabilities for the applications.