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react-syntax-highlighter/react-syntax-highlighter

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4,638 stars·315 forks·JavaScript·mit·38 viewsreact-syntax-highlighter.github.io/react-syntax-highlighter/demo↗

React Syntax Highlighter

react-syntax-highlighter is a React component that renders source code with language-specific syntax coloring. It wraps the Prism and Highlight.js syntax highlighting libraries, tokenizing source code using their language grammars and mapping each token to a styled React element. The component operates in two styling modes: inline style objects applied directly to each token, or CSS class names that can be themed via external stylesheets. This dual-mode approach makes the highlighter portable across environments where CSS class injection may or may not be available.

The component is built around a pluggable architecture where interchangeable highlighter engines feed a tokenization pipeline, and the resulting tokens are wrapped in nested React elements to preserve line and token structure. Developers can apply custom color themes and select from dozens of language grammars, enabling consistent branding or accessibility requirements in React-based documentation, blogs, and tutorials. The rendering is entirely virtual DOM-based, converting parsed tokens into styled elements without requiring external DOM manipulation or dependencies beyond the core highlighter libraries.

The project covers the full workflow of syntax highlighting in React: parsing source code, tokenization, and styled rendering, all exposed through a straightforward component API. Documentation and installation instructions are available in the repository, guiding users through adding the package and using either the default themes or custom ones.

Features

  • Syntax Highlighting Components - A React component that renders source code with language-specific syntax coloring using tokenization and styled spans.
  • Code Highlighting - Renders code tokens with language-specific colors by applying styled spans.
  • React - Parses source code into tokens and colors each token with language-specific styles in React.
  • Syntax Highlighters - Adds syntax-colored code blocks to React user interfaces without complex setup.
  • Highlighter Engine Adapters - Wraps Prism and Highlight.js syntax highlighting libraries for use in JavaScript projects.

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  • Syntax Highlighting Engines - Ships a pluggable backend that swaps between Prism and Highlight.js engines.
  • Programming Language Tokenizers - Tokenizes source code using language-specific grammars for syntax coloring.
  • Token Wrapping Components - Wraps each highlighted line and token in nested React components for structure.
  • Code Presentation Themes - Applies custom color themes and language grammars to code blocks for consistent branding.
  • Code Semantic Colorizers - Displays source code with accurate token coloring for dozens of programming languages.
  • Inline Styles - Provides inline style application for syntax-highlighted code tokens.
  • Code Inline Styling - Renders highlighted code using inline styles for portability without external CSS.
  • Code Presentation Utilities - Embeds readable, highlighted code examples in React-based documentation and tutorials.
  • CSS Class-Based - Applies CSS class names to tokens, allowing custom themes via external stylesheets.
  • Inline Style - Applies colors directly as inline styles on each token, avoiding external CSS dependencies.
  • DOM-Based Rendering - Renders syntax-highlighted code by mapping tokens to DOM elements via React's virtual DOM.
  • Token Wrapping - Converts each parsed token into a styled HTML span element.
  • Star history

    Star history chart for react-syntax-highlighter/react-syntax-highlighterStar history chart for react-syntax-highlighter/react-syntax-highlighter

    How this analysis was created: This summary and feature list are AI-generated from collected project material and can contain mistakes. Stars, license and language are imported from GitHub. Inclusion does not mean that we have tested or audited this project. Check the source documentation for any feature you depend on. Learn more on our About page.

    Frequently asked questions

    What does react-syntax-highlighter/react-syntax-highlighter do?

    react-syntax-highlighter is a React component that renders source code with language-specific syntax coloring. It wraps the Prism and Highlight.js syntax highlighting libraries, tokenizing source code using their language grammars and mapping each token to a styled React element. The component operates in two styling modes: inline style objects applied directly to each token, or CSS class names that can be themed via external stylesheets. This dual-mode approach makes the…

    What are the main features of react-syntax-highlighter/react-syntax-highlighter?

    The main features of react-syntax-highlighter/react-syntax-highlighter are: Syntax Highlighting Components, Code Highlighting, React, Syntax Highlighters, Highlighter Engine Adapters, Syntax Highlighting Engines, Programming Language Tokenizers, Token Wrapping Components.

    Which projects share features with react-syntax-highlighter/react-syntax-highlighter?

    Projects with overlapping indexed features include: conorhastings/react-syntax-highlighter — react-syntax-highlighter is a component for rendering source code with syntax highlighting in React applications. It… codemirror/codemirror5 — CodeMirror 5 is a browser-based code editor and extensible UI component. It functions as a syntax highlighting engine… alecthomas/chroma — Chroma is a syntax highlighter written in Go that converts raw source code into colorized text or HTML. It identifies… shikijs/shiki — Shiki is a syntax highlighting engine that generates color-coded HTML or ANSI output from source code. It functions as… googlearchive/code-prettify — Code-prettify is a browser-based tool and HTML syntax highlighter that adds visual formatting and line numbers to raw… simonbs/runestone — Runestone is a web-based code editor component and rendering engine designed for browser-based text editing. It…

    Projects sharing features with React Syntax Highlighter

    These projects share indexed features with React Syntax Highlighter. Shared tags can include platform or build tooling; verify the primary use case before treating a result as a replacement.
    • conorhastings/react-syntax-highlighterconorhastings avatar

      conorhastings/react-syntax-highlighter

      4,663View on GitHub↗

      react-syntax-highlighter is a component for rendering source code with syntax highlighting in React applications. It acts as a wrapper for the PrismJS and Highlight.js engines to provide formatted code display and language-specific colors. The project provides a customizable code block renderer that supports custom DOM injection, line numbering, and inline styling. It allows users to replace default HTML tags with custom React components to control how code is injected into the document object model. The library covers code presentation management through visual themes and line numbering. It

      JavaScript
      View on GitHub↗4,663
    • codemirror/codemirror5codemirror avatar

      codemirror/codemirror5

      27,247View on GitHub↗

      CodeMirror 5 is a browser-based code editor and extensible UI component. It functions as a syntax highlighting engine and a programmable text surface, providing a professional coding experience embedded within web pages. The project is distinguished by its ability to act as a collaborative text editor, synchronizing document changes across multiple users in real time. It also includes a dedicated Vim emulation layer that implements modal keyboard interactions, motions, and operators. The system covers broad capability areas including language support for autocompletion and error analysis, co

      JavaScript
      View on GitHub↗27,247
    • alecthomas/chromaalecthomas avatar

      alecthomas/chroma

      4,960View on GitHub↗

      Chroma is a syntax highlighter written in Go that converts raw source code into colorized text or HTML. It identifies programming languages and tokens using language-specific lexers to produce highlighted output for various environments. The project utilizes a theme-driven colorization system that decouples token types from final colors through an intermediate style mapping layer. This allows for custom code theming by mapping specific token categories to foreground and background colors. The system covers language identification, terminal text formatting for ANSI-compatible viewers, and web

      Goconsolegogolang
      View on GitHub↗4,960
    • shikijs/shikishikijs avatar

      shikijs/shiki

      12,946View on GitHub↗

      Shiki is a syntax highlighting engine that generates color-coded HTML or ANSI output from source code. It functions as a static code highlighter, utilizing standard grammar definitions to parse text and apply accurate visual styling for documentation and terminal displays. The engine distinguishes itself by using a TextMate grammar parser to interpret text patterns, ensuring that code displays match the visual appearance of professional editors. It operates through an isomorphic runtime that supports both browser and server environments, utilizing WebAssembly for consistent execution and pre-

      TypeScriptmarkdownshikisyntax-highlighting
      View on GitHub↗12,946
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