# adam-p/markdown-here

Google Chrome, Firefox, and Thunderbird extension that lets you write email in Markdown and render it before sending.

Repository: https://github.com/adam-p/markdown-here
Canonical: https://ross.abutalabs.com/products/markdown-here
Homepage: https://markdown-here.com
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2025-08-22T00:21:50+00:00

## Health v2 (maintenance only)
Score: 51/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 38, release rhythm 40, longevity 100
- inputs: {"age_days": 5225, "days_push": 377, "days_rel": 420, "gap_med": 9, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 60247, forks 11030 (observed 2026-08-28T04:12:18.794946+00:00)

## What it is
Markdown Here is a browser and email-client extension (Chrome, Firefox, Opera, Safari, Thunderbird, Postbox) that lets users write email in Markdown and render it to formatted HTML with one click before sending. It supports code syntax highlighting, TeX math, and fully customizable CSS styling.

## Use cases
- write email in markdown and render it before sending
- format email with code snippets and syntax highlighting
- stop fiddling with rich-text formatting buttons in webmail
- include math formulae in email
- use markdown in evernote, wordpress, or google groups editors

## When to choose
- you write structured or code-heavy email and prefer Markdown over toolbar-based formatting
- you use Gmail, Outlook web, Thunderbird, or other contentEditable-based editors
- you want customizable email styling via CSS themes

## When to avoid
- you need a full standalone Markdown editor rather than an in-browser rendering extension
- your email client does not use contentEditable rich editing
- you need WYSIWYG live preview while typing rather than render-on-demand

## Facets
- artifact type: plugin
- maturity: active
- function: markdown, templating, editor
- domain: developer-tools, email, browser-extensions, web-development
- platform: browser, browser-extension, cross-platform
- tags: email-formatting, markdown-rendering, chrome-extension, firefox-extension, thunderbird, syntax-highlighting, wysiwyg, javascript

## Member repositories
- adam-p/markdown-here (main) score 51

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:18.794946+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 2026-08-29T16:17:47.649470+00:00, confidence not recorded.
  - readme: https://github.com/adam-p/markdown-here (fetched 2026-08-28T04:12:18.794946+00:00, sha 5ec467ee7e91)
  - homepage: https://markdown-here.com (fetched 2026-08-28T17:59:54.102846+00:00, sha 792060b6755a)
  - site_page: https://markdown-here.com/features.html (fetched 2026-08-28T17:59:54.111394+00:00, sha 19e84fee8afa)
  - site_page: https://markdown-here.com/about.html (fetched 2026-08-28T17:59:54.113548+00:00, sha 83e5f5bab03e)
  - site_page: https://markdown-here.com/get.html (fetched 2026-08-28T17:59:54.115594+00:00, sha db720521252b)
- Data as of 2026-08-30T08:39:29.467469+00:00.