CKEditor 5 is a set of ready-to-use rich text editors created with a powerful framework that enables you to create any kind of text editing solution and include real-time collaborative editing inside.
AxMath is an interactive WYSIWYG equation editor. It enables you to type formulas faster than handwriting. It has all kinds of functionalities which make you type equations at lightspeed. Key features include semantic math input, auto calculation, LaTeX conversion, memory board, etc. It currently supports Win7/8/10 and Office 2010-2016.