Online Syntax Highlighter

This code presentation utility applies color-coded syntax highlighting to source code improving readability for documentation, tutorials, or blog posts. The highlighter parses code identifying language keywords, strings, comments, functions, and data types, then applies distinct colors and styles making code structure immediately apparent. Language detection automatically recognizes programming languages from content patterns, manual selection supports 100+ languages (JavaScript, Python, Java, C++, SQL), and theme selection offers color schemes (light, dark, high-contrast) matching different presentation contexts. Users paste code receiving instantly highlighted output, format options generate HTML spans with inline styles or CSS classes, and line numbering adds reference numbers for instruction. Copy-paste preservation maintains highlighting when transferring to editors supporting rich text, export generates embeddable HTML snippets for websites, and image export renders code as syntax-highlighted PNGs. Applications include creating tutorial blog posts with readable code examples, preparing documentation with professional code formatting, generating presentation slides with highlighted snippets, or embedding code in platforms lacking native highlighting support.