Code Syntax Highlighter
Guide
Code Syntax Highlighter
Paste code in any of 100+ programming languages and get instant, beautifully syntax-highlighted output. Choose from 20 popular themes, toggle line numbers, highlight specific lines, and export as embeddable HTML with inline CSS.
How to Use
Paste or type your code in the editor. Select the programming language (or use auto-detect) and pick a color theme. The highlighted preview updates in real time. Copy the output as HTML with inline styles for embedding in blogs, docs, or emails, or download as an HTML file.
Features
- 100+ languages – JavaScript, Python, TypeScript, Java, C++, Go, Rust, SQL, HTML, CSS, Bash, and many more via highlight.js
- 20 themes – Monokai, Dracula, GitHub Light/Dark, VS Code Dark, Nord, One Dark, Solarized, and more
- Line numbers – Toggleable line numbering for easy reference
- Line highlighting – Emphasize specific lines by number for tutorials and code reviews
- Auto-detect language – Automatic language detection when you’re not sure
- Embeddable HTML – Copy highlighted code with inline CSS that works anywhere
- Word wrap – Toggle word wrapping for long lines
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