CodeMirror
No written verdict yet. Here is what commenters said.
5recommend
1warn against
Dec 27, 2025first mention
Sep 2, 2026latest mention
Why people recommend it
“It takes a bit of time to get used to the abstractions, but I think it is worthwhile.”
“which is like Monaco but more lightweight”
Show 3 more
“just using Monaco or https://codemirror.net/.”
vibecoded a markdown editoron “Show HN: Markdown Viewer and Editor”
“CodeMirror has a demo where they render a million lines”
Caveats and dissent
“Some (including the most popular: codemirror) go as far as putting themselves inside”
Often compared with
Who recommends it in their own words
Threads where it came up
- Fine, I'll build my own text editor 3 mentions
- Collaborative Editing in CodeMirror 2 mentions
- VSCode rebrands as "The open source AI code editor" 2 mentions
- Show HN: Markdown Viewer and Editor 1 mention
- Compendium – Shared workspace for teams and AI agents 1 mention
- On Rendering Diffs 1 mention
Data: codemirror.json. Quotes are verbatim; the verdict and theme labels are written by a model from these comments, and every clause links to its sources.
All comments 17
“It takes a bit of time to get used to the abstractions, but I think it is worthwhile.”
“which is like Monaco but more lightweight”
“Haverbeke went on to create CodeMirror and ProseMirror.”
“just using Monaco or https://codemirror.net/.”
“Real-time collaboration on documents runs on Yjs CRDTs over CodeMirror 6”
“the codemirror Huge File demo works fine”
“using a nested codemirror instance for the cell editor”
“Code editor: Codemirror 6 + vim mode + AI autocompletions”
“CodeMirror is great, but still requires a lot of clientside JavaScript.”
I'm a huge fan of this guy's work. His code is really easy to read, and I learn a lot every time I dig in. I think that Lezer [0] is underappreciated considering how flexible and performant it is. Edit: I just realized I didn't even mention his most famous work, Eloquent JavaScript [1]! This book is incredible. I couldn't finish it the first time, so I'm not sure if it's the best book for beginners, but I learned so
“CodeMirror has a demo where they render a million lines”
“I went with CodeMirror”
“refactored the CodeMirror editor into an extension”
“Built with mdx-editor, code mirror 6, react, shadcn and typescript”
“Some (including the most popular: codemirror) go as far as putting themselves inside”
“turning Theia or CodeMirror into vscode”
“I'll probably start playing around with Theia and Codemirror on the side just in case.”