Trix

What Trix is

Trix is a free, open-source WYSIWYG editor for composing messages, comments, articles and lists in web applications. Its internal document model converts input into editing operations and renders the document in the editor, which produces terse, consistent HTML. Default formatting includes bold, italic, links, strikethrough, headings, quotes, code, and bulleted and numbered lists. Developers can customize the toolbar and add actions through editor events and data attributes. Files can be dropped or pasted into the editor, but the host application must upload them and supply a permanent URL; supported image attachments receive previews by default. Trix can update a form’s hidden input when content changes and supports unlimited undo and redo. It supports evergreen, self-updating desktop and mobile browsers and is available in ESM and UMD formats or as an npm package. The project is made by 37signals and lists an MIT license. Its documentation warns that untrusted HTML placed directly inside a trix-editor can execute before sanitization.