# Replit — Betting on CodeMirror

- Company: Replit (replit.com)
- Announced: 2022-03-10
- Category: not stated
- Coverage: not counted
- Announcement: no
- Group: routine
- Source: https://replit.com/blog/codemirror
- Record: https://forck.live/items/18136-betting-on-codemirror
- Subject: Replit Agent

Replit describes its migration from the Monaco editor to CodeMirror 6, citing CodeMirror's mobile support, smaller bundle size (8.23 MB vs 51.17 MB), extensible API, and easier customization as key advantages. The post explains that CodeMirror's modular architecture allowed Replit to replace core editor components with React portals, which was not possible with Monaco.

## Evidence

Verbatim from https://replit.com/blog/codemirror:

> CodeMirror 6 is a complete rewrite of the CodeMirror editor with a focus on accessibility, touchscreen support, and extensibility. Compared to Monaco, CodeMirror is significantly more lightweight, performant, and customizable. It also has first class mobile support!

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Record: https://forck.live/items/18136-betting-on-codemirror
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