What is Syntax Highlight?
A syntax highlighter converts plain source code into colorized, readable markup using language-aware parsing and a choice of themes. Highlighting makes code far easier to read by coloring keywords, strings, comments and other tokens. It supports a wide range of programming and markup languages. This tool highlights code instantly in your browser, ready to copy into documentation, blogs or tutorials.
Runs locally: your code is highlighted in your browser; nothing is uploaded.
How Syntax Highlight works
Highlighting analyzes your code and styles each token:
- You pick the programming language (or it is auto-detected).
- A parser breaks the code into tokens — keywords, strings, numbers, comments and so on.
- Each token type is wrapped and colored according to the selected theme.
Options explained
- Language — Choose the source language for accurate tokenizing (dozens supported).
- Style / theme — Pick a color theme (light or dark) for the highlighted output.
Common uses
- Pasting nicely highlighted code into blog posts and tutorials.
- Documentation and READMEs.
- Sharing readable code snippets.
Frequently asked questions
Which languages are supported?
Many popular languages including JavaScript, Python, Java, C/C++, HTML, CSS, SQL, Bash and more.
Can I change the colors?
Yes. Choose from multiple themes for the highlighted output.
Is my code uploaded?
No. Highlighting happens entirely in your browser.