RTE stands for Rich Text Editor in the browser. Also it is know as the WYSIWYG (What You See Is What You Get) editor. The RTE can provide editing functionalities such as bold, italic, underline, indent, outdent, left align, centre align, right align, undo, redo, superscript, subscript, hyper link and unlink, cut, copy, paste, ordered list, unordered list, insert an image, insert a video, spell checker, and many more.

Although major browsers support it, there are two variants for programming RTE. One is for IE and the others are for Mozilla including FireFox, Chrome, Opera, Safari, etc.

Programming RTE is explained in depth in the following Q&As:

• How to make bold, italic and underline in the RTE?
• How to make undo and redo in the RTE?
• How to make indent and outdent in the RTE?
• How to make unordered list and ordered list in the RTE?
• How to make superscript and subscript in the RTE?
• How to make hyper link and unlink in the RTE?
• How to insert an image in the RTE?
• How to insert a video in the RTE?