# ProseMirror

The ProseMirror WYSIWYM editor

Repository: https://github.com/ProseMirror/prosemirror
Canonical: https://ross.abutalabs.com/products/prosemirror
Homepage: http://prosemirror.net/
Language: JavaScript
License: MIT
License Family: permissive
Archived: true
Last push: 2026-04-01T18:29:27+00:00
Link (homepage): http://prosemirror.net/
Link (site_page): https://prosemirror.net/docs

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 75, release rhythm 35, longevity 100
- inputs: {"age_days": 4045, "days_push": 154, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 8703, forks 370 (observed 2026-08-28T04:10:24.304338+00:00)

## What it is
ProseMirror is a JavaScript toolkit for building rich-text WYSIWYG editors on the web, based on contentEditable with support for custom document schemas and collaborative editing. It is a modular, plugin-based library distributed as separate npm modules rather than a ready-to-use editor.

## Use cases
- build a rich-text editor for a web app
- add collaborative real-time editing to a document editor
- create a structured content editor with custom document schemas
- build a markdown-like editor with a WYSIWYG interface
- embed a semantic rich-text editor in a CMS
- implement a comment or note editor with constrained formatting

## When to choose
- you need fine-grained control over document structure and semantics
- you want real-time collaborative editing support
- you are building a custom editor rather than wanting an out-of-the-box one
- you need a modular, extensible editing toolkit for the browser

## When to avoid
- you just need a simple textarea or basic markdown input
- you want a fully prebuilt editor with minimal configuration
- you are building a native mobile or desktop app without a web view

## Facets
- artifact type: framework
- maturity: stable
- function: editor, ui-components, plugin-system, state-management
- domain: web-development, frontend, text-editors, developer-tools
- platform: browser
- tags: rich-text-editor, wysiwyg, contenteditable, collaborative-editing, document-schemas, toolkit, javascript, nodejs

## Member repositories
- ProseMirror/prosemirror (main) score 10
- ProseMirror/prosemirror-view (backend) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:24.304338+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:25:33.354577+00:00, confidence not recorded.
  - readme: https://github.com/ProseMirror/prosemirror (fetched 2026-08-28T04:10:24.304338+00:00, sha 86a167e95a29)
  - homepage: http://prosemirror.net/ (fetched 2026-08-29T08:26:27.449906+00:00, sha 7553edd4204e)
  - site_page: https://prosemirror.net/docs (fetched 2026-08-29T08:26:27.459927+00:00, sha 8c1d8b30c981)
- Data as of 2026-08-30T08:39:29.467469+00:00.