A WYSIWYG (What You See Is What You Get) is a type of editing software that allows users to see and edit content in a form that appears as it would when displayed on a website. A WYSIWYG editor is a tool that displays content for editing in a form approximating its final appearance, meaning that the user interface allows the user to view their real-time edits on a display that resembles the final published outcome.
WYSIWYG editors have grown in popularity as the internet has become more ubiquitous and accessible to people. Since people need to find ways to upload and send formatted content on the fly, most use WYSIWYG environments.
WYSIWYG is used in modern applications like content management systems, customer relationship management systems, email systems, WYSIWYG web builders, document management tools, and other systems with written content.