Paste your raw code, select language and theme, choose CSS embedding, then generate syntax-highlighted HTML.
Add the styles in a separate CSS file or as inline styles included in the HTML. Loas a demo snippet to test the syntax highligher.
Paste your code → select language & theme → generate highlighted HTML → preview → grab the code in separate HTML and CSS files or all in one, with inline styles.
With this Syntax Highlighter Tool, you can turn plain, unstyled code into clean, colorful snippets that look great in docs, blogs, or tutorials. Pick your language (or leave it on autodetect), apply a theme that fits your design, and decide whether you want a separate stylesheet or self-contained inline styles, then copy, paste, and publish your snippets.
The workflow is fast: paste, and generate intantly. Use the live preview to verify the color scheme, line wrapping, and contrast. Load a demo snippet to compare themes, and use the copy buttons to move HTML or CSS straight into your project.
Use the dropdowns to pick your programming language and a color theme, or just leave it on Autodetect and the Default theme.
See what fits best with your website's color palette.
Play with the demo snippets to eperiment with the tool.
Paste your raw snippet into the input editor. Multi-language support lets you test across stacks.
<!-- Example -->
function greet(name){
return `Hello, ${name}!`;
}
Decide how to include styles:
Both options are generated for you.
If you don't see the code updated then click Generate. The output:
Minimal markup with inline styles.
The class names start with .hljs to avoid conflits with other styles of your template.
See how the code snippet renders with your chosen theme.
<h1>Try the <a href="https://html-css-js.com">
HTML CSS JS
</a> tools!</h1>
Use the Copy buttons to grab the HTML or CSS and drop into your project.
Don't forget: You only need to include the CSS once if you use the snippets with class names, and not with inline styles.