codemirror/codemirror5
In-browser code editor (version 5, legacy) observed · 2026-08-28
Health v2 · maintenance only
10/100
- Activity 77
- Release rhythm 8
- Longevity 100
Flags: archived
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 5710
- days_rel: 712
- days_push: 139
- n_releases_24m: 1
Adoption not part of the score
27233 stars · 4932 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
CodeMirror 5 is a versatile in-browser code editor library written in JavaScript, featuring over 100 language modes, syntax highlighting, autocompletion, code folding, and configurable keybindings. This is the legacy version 5 line; CodeMirror 6 is the actively developed successor.
Use cases
- embed a code editor in a web page
- syntax highlighting for a custom language in the browser
- add vim or emacs keybindings to a web-based editor
- build an online code playground
- show editable code snippets in a web app
- implement a diff/merge view in the browser
When to choose
- you must maintain an existing CodeMirror 5 integration
- you need broad browser support including older environments
- you rely on CodeMirror 5 addons or community plugins not ported to v6
When to avoid
- starting a new project - use CodeMirror 6 instead
- you need strong mobile or accessibility support
- you want a library under active development
Facets
library · maturity maintenance
editor ui-components frontend-framework text-editors web-development frontend developer-tools browser code-editor syntax-highlighting legacy in-browser-editor vim-bindings code-folding javascript nodejs
3 sources
- readme: https://github.com/codemirror/codemirror5 · fetched 2026-08-28 · 01253b9ef008
- homepage: http://codemirror.net/5/ · fetched 2026-08-29 · a5b70ee51a1b
- site_page: https://codemirror.net/5/doc/releases.html · fetched 2026-08-29 · c7a9e9e82871
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| codemirror/codemirror5 | main | 10 |
For agents
markdown · JSON · MCP: product_card(name="codemirror/codemirror5")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem