# sirthias/pegdown

A pure-Java Markdown processor based on a parboiled PEG parser supporting a number of extensions

Repository: https://github.com/sirthias/pegdown
Canonical: https://ross.abutalabs.com/products/pegdown
Homepage: http://pegdown.org
Language: Java
License: Apache-2.0
License Family: permissive
Last push: 2016-12-14T18:43:59+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5969, "days_push": 3549, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1292, forks 208 (observed 2026-08-28T04:04:16.054700+00:00)

## What it is
Pegdown is a pure-Java Markdown processor built on a parboiled PEG parser, supporting the original Markdown spec plus many extensions. The project is officially end-of-life and unmaintained, with the author recommending flexmark-java as its replacement.

## Use cases
- parse markdown to html in java
- convert markdown documents on the jvm
- markdown parser with extensions like tables and smart quotes
- legacy pegdown maintenance in existing java projects
- extend markdown processing with custom plugins

## When to choose
- you maintain legacy code already depending on pegdown
- you need pegdown-specific dialect quirks in an existing pipeline

## When to avoid
- starting any new project requiring a markdown parser
- parsing large or pathological markdown inputs where performance matters
- you need actively maintained software with bug fixes
- you want a modern CommonMark-compliant parser

## Facets
- artifact type: library
- maturity: abandoned
- function: parser, markdown, templating
- domain: parsers, documentation, web-development, developer-tools
- platform: jvm, cross-platform
- tags: peg-parser, parboiled, html-generation, deprecated, flexmark-successor

## Member repositories
- sirthias/pegdown (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:16.054700+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 2026-08-30T04:54:45.244947+00:00, confidence not recorded.
  - readme: https://github.com/sirthias/pegdown (fetched 2026-08-28T04:04:16.054700+00:00, sha 01c2fe059f55)
  - homepage: http://pegdown.org (fetched 2026-08-29T12:11:11.143110+00:00, sha 433f7b98c9d8)
- Data as of 2026-08-30T08:39:29.467469+00:00.