MDXEditor is a free, open-source React component for authoring Markdown documents in a WYSIWYG editor. It accepts Markdown as a string and emits Markdown as a string, without an intermediate HTML representation. Its editing engine is built on Lexical, and developers enable capabilities through plugins or add plugins for other Markdown constructs. Listed features include headings, quotes, links, lists, images, tables, code blocks, front matter, shortcuts, directives, JSX components, source editing, diff views, and a customizable toolbar. Tables can contain Markdown; controls include adding or removing rows and columns and changing alignment, but HTML tables are unsupported. Images can be inserted from a URL or local device, pasted or dropped, and passed to a configurable upload handler. Code blocks support syntax highlighting and language-aware editing, with CodeMirror available for editable blocks. The package is installed from npm in a React project, with setup guides for Next.js, Vite, Remix, and Create React App. It does not support server rendering, and it is tailored to Markdown rather than text font size, color, or family controls.
Who it is for
MDXEditor suits React developers building Markdown authoring into technical documentation or other projects. Its plugin system also gives developers a path to extend the editor for additional Markdown constructs.
What is good
- Markdown remains a string without intermediate HTML.
- Plugins enable features and additional Markdown constructs.
- Supports source editing and document diff views.
- Image insertion includes URL, local, paste, and drop options.
- Code blocks offer syntax highlighting and language-aware editing.
What to know first
- Server rendering is unsupported.
- HTML tables are not supported.
- Text font size, color, and family cannot be changed.
Verdict
MDXEditor provides a plugin-based Markdown editing component with source, diff, table, image, and code-block features. Its Markdown focus and lack of server rendering or font styling controls are important fit considerations.
MDXEditor plans and pricing
All plansCompared on rich text editor software
- Free plan
- Yes
- Deployment
- self_hosted
- Framework support
- React, Next.js, Vite, Remix, Create React App
- Structured content
- Yes
- Table editing
- Yes
- Media handling
- Images; URL insertion; local-device insertion; paste and drag-and-drop upload handling; image resizing


