# russross/blackfriday

Blackfriday: a markdown processor for Go

Repository: https://github.com/russross/blackfriday
Canonical: https://ross.abutalabs.com/products/blackfriday
Language: Go
License: NOASSERTION
License Family: other
Last push: 2024-01-29T03:41:57+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 5577, "days_push": 947, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5606, forks 596 (observed 2026-08-28T04:09:22.958096+00:00)

## What it is
Blackfriday is a fast, paranoid Markdown processor library for Go that parses Markdown into an AST and renders HTML, with support for common extensions like tables and smart punctuation. It is the v2-recommended library derived from a translation of Sundown.

## Use cases
- convert markdown to html in go
- render user-supplied markdown safely
- parse markdown into an ast
- generate html from markdown files
- markdown processing for a go web app

## When to choose
- you need a fast, battle-tested markdown renderer in Go
- you must safely process untrusted user markdown input
- you want an AST for custom rendering extensions

## When to avoid
- you need CommonMark strict compliance or the latest markdown features
- you need renderers other than HTML
- you need actively developed markdown tooling with frequent fixes

## Facets
- artifact type: library
- maturity: maintenance
- function: parser, markdown, templating
- domain: parsers, web-development, developer-tools
- platform: go, cross-platform
- tags: markdown-to-html, ast, smartypants, utf-8

## Member repositories
- russross/blackfriday (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:22.958096+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 2026-08-29T17:55:26.608835+00:00, confidence not recorded.
  - readme: https://github.com/russross/blackfriday (fetched 2026-08-28T04:09:22.958096+00:00, sha 62312a1cf1cd)
- Data as of 2026-08-30T08:39:29.467469+00:00.