CKEditor - Real-time collaborative future-ready rich text editor
Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
Summernote - Summernote is a JavaScript library that helps users create WYSIWYG editors online.
Apache OpenOffice - Apache OpenOffice is an open source, office document productivity suite.
Froala Editor - Froala Editor is a WYSIWYG HTML editor that enables rich text editing capabilities for the applications.
SSuite Office - SSuite Office is called to be one of the most accomplished software developers for both beginners and professionals alike.