A rich text editor is a tool that allows users to create and edit text online. Many of the text editors have the ability to work on numerous types of media such as images, videos, and audio. Some even allow for file uploads.
A rich text editor is a text editor that can edit various types of content. This includes HTML and CSS, as well as Markdown and reStructuredText.
A good thing about rich text editors is that they offer users a simple way to perform text formatting.