syntaxhighlighter/syntaxhighlighter
SyntaxHighlighter is a fully functional self-contained code syntax highlighter developed in JavaScript. observed · 2026-08-28
Health v2 · maintenance only
23/100
- Activity 0
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 5740
- days_rel: n/a
- days_push: 2329
- n_releases_24m: 0
Adoption not part of the score
5300 stars · 1251 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
SyntaxHighlighter is a self-contained, client-side JavaScript library for highlighting code snippets on web pages and web apps. It has existed since 2004 and supports legacy brushes and themes for rendering code with syntax colors for presentation purposes.
Use cases
- highlight code snippets on a blog
- display syntax-colored code in web apps
- render code blocks in documentation sites
- colorize source code in the browser without a server
- add code highlighting to a CMS or WordPress site
When to choose
- you need a mature, battle-tested client-side highlighter with legacy theme/brush compatibility
- you want highlighting without server-side processing
- you maintain an older site already using SyntaxHighlighter v3 brushes
When to avoid
- you need actively maintained software with frequent updates (last release 2020)
- you want modern alternatives like Prism or Shiki with better ecosystem support
- you need server-side or build-time syntax highlighting
Facets
library · maturity maintenance
frontend-framework ui-components developer-tools web-development frontend developer-tools documentation browser syntax-highlighting code-presentation javascript client-side themes nodejs web-server
2 sources
- readme: https://github.com/syntaxhighlighter/syntaxhighlighter · fetched 2026-08-28 · e6cfb572ffd9
- registry_npm: https://registry.npmjs.org/syntaxhighlighter · fetched 2026-08-29 · 66cab44fdc16
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| syntaxhighlighter/syntaxhighlighter | main | 23 |
For agents
markdown · JSON · MCP: product_card(name="syntaxhighlighter/syntaxhighlighter")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem