How to use Syntax Highlighter

What Syntax Highlighter does#

Paste any code snippet and get it beautifully syntax-highlighted, with automatic language detection or a language you choose. Supports JavaScript, TypeScript, Python, CSS, HTML, JSON, SQL and more. 100% in your browser.

How to use it#

Open the tool and paste or type your input.
Choose the options you want.
See the result instantly, updated as you work.
Copy it to your clipboard in one click.

Your privacy#

Syntax Highlighter runs entirely in your browser. Your data never leaves your device — there is no upload, and nothing is stored on our servers.

Frequently asked questions

Is Syntax Highlighter free to use?

Yes. Syntax Highlighter is completely free and needs no account or sign-up.

Is my data private?

Yes. Syntax Highlighter works entirely in your browser, so your data never leaves your device.

Do I need to install anything?

No. Syntax Highlighter runs online in any modern browser, on desktop or mobile.