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Syntax highlighting

Modern JavaScript libraries for syntax highlighting code blocks in docs, blogs, and web apps. This list focuses on established projects, but their release cadence and maintenance model vary.

  • Use Shiki for static docs and SSR output with VS Code-like quality.
  • Use Prism when you need a lightweight client-side highlighter with many plugins.
  • Use Highlight.js for easy setup and automatic language detection.
  • Use @wooorm/starry-night if you want GitHub-style highlighting based on TextMate grammars.
  • Use Sugar High for tiny JS/JSX snippets, or when its limited set of language presets is sufficient.
Package Best for Latest stable version Notes
Shiki SSG/SSR docs, MDX pipelines npm 4.3.1 High accuracy with TextMate grammars and VS Code themes; strong for build-time highlighting
Prism Browser-side highlighting npm 1.30.0 Lightweight and extensible; v1 currently accepts security fixes while v2 is in development
Highlight.js Auto-detection and quick integration npm 11.11.1 Mature, widely adopted, and usable in browsers and on servers
@wooorm/starry-night GitHub-like rendering npm 3.10.0 Uses TextMate grammars and produces a HAST syntax tree with GitHub-compatible CSS classes
refractor Prism AST output (rehype/unified) npm 5.0.0 Wraps Prism and returns a HAST syntax tree instead of an HTML string
lowlight highlight.js AST output npm 3.3.0 Returns HAST and works well with virtual DOM and unified pipelines
Sugar High Tiny snippets npm 1.2.1 About 1 kB for JS/JSX, with presets for C, CSS, diff, Go, Java, Python, and Rust
  • For full in-browser editing (not just highlighting), see Embeddable editors.
  • For documentation sites, build-time highlighting avoids client-side processing and a flash of unhighlighted code.