SyntaxHighlighter

SyntaxHighlighter is a JavaScript library for syntax highlighting of code snippets in web pages. It supports dozens of programming languages and provides customizable themes and color schemes. The library automatically detects code blocks on the page and applies appropriate syntax coloring based on the language specified. SyntaxHighlighter offers features like line numbering, code folding, and toolbar with copy-to-clipboard functionality. It can be easily integrated into blogs, documentation sites, and content management systems. The library works by parsing code on the client-side and wrapping syntax elements in styled HTML spans. While less actively maintained today, it remains popular in legacy systems and has influenced modern alternatives like Prism.js and highlight.js.