Code Syntax Highlighter

Add beautiful syntax highlighting to your code snippets. Perfect for blogs, documentation, tutorials, and technical websites.

Programming Language

Color Theme

Show Line Numbers

Input Code

About Code Syntax Highlighter

Syntax highlighting makes code more readable by applying different colors to different parts of the code (keywords, strings, numbers, comments, etc.). Our Code Syntax Highlighter generates ready-to-use HTML and CSS that you can embed in your website, blog, or documentation.

Key Features

✓Multiple Languages: JavaScript, Python, HTML, CSS, SQL, JSON
✓Dark & Light Themes: Choose between professional color schemes
✓Line Numbers: Optional line numbering for code blocks
✓Copy HTML/CSS: Get ready-to-use code for your website
✓Live Preview: See how your code will look instantly
✓No Dependencies: Pure HTML/CSS solution, no JavaScript libraries needed

How to Use

Select Language: Choose the programming language of your code
Choose Theme: Pick between dark or light color scheme
Paste Code: Enter or paste your code in the input box
Generate: Click "Generate Highlighted Code" to see preview
Copy HTML: Copy the generated HTML code
Copy CSS: Copy the CSS styles for colors
Add to Website: Paste both HTML and CSS into your webpage

Supported Languages

JavaScript

Highlights keywords (function, const, let), strings, numbers, comments, and function names

Perfect for web development tutorials and documentation

Python

Highlights def, class, if/else, for/while, strings (including f-strings), and comments

Ideal for data science and AI tutorials

HTML

Highlights tags, attributes, and attribute values with distinct colors

Great for web design tutorials and guides

CSS

Highlights selectors, properties, values, and comments separately

Perfect for styling examples and CSS documentation

SQL

Highlights SELECT, FROM, WHERE, JOIN and other SQL keywords

Useful for database tutorials and query examples

JSON

Highlights keys, string values, numbers, booleans, and null

Great for API documentation and data examples

Benefits of Syntax Highlighting

Improved Readability: Colors make code structure immediately visible
Easier Learning: Beginners can identify code elements quickly
Professional Look: Makes technical content look polished and credible
Error Spotting: Mistakes become more obvious with highlighting
Better Documentation: Makes API docs and tutorials more user-friendly
Increased Engagement: Readers stay longer on well-formatted content

Use Cases

Technical Blogs

Add professional syntax highlighting to programming tutorials and articles

Documentation Sites

Make API documentation and code examples more readable

Online Courses

Create clear code examples for educational platforms

Portfolio Websites

Showcase your code projects with beautiful syntax highlighting

Frequently Asked Questions

Do I need JavaScript libraries?

No! This tool generates pure HTML and CSS. There's no need for JavaScript libraries like Prism.js or Highlight.js. The code is lightweight and fast-loading.

Can I customize the colors?

Yes! After copying the CSS, you can modify the color values to match your website's design. Each syntax element has its own CSS class for easy customization.

Will this work in WordPress?

Absolutely! Copy the HTML and paste it into a Custom HTML block. Add the CSS to your theme's Additional CSS section in the customizer.

Is the highlighting accurate?

The highlighting covers the most common syntax elements and works well for most code examples. For complex edge cases, you may want to use a full syntax highlighting library.

Can I add more languages?

The tool currently supports 6 popular languages. You can modify the CSS and add your own highlighting rules for additional languages if needed.

CSS Classes Reference

Class	Description	Example
.keyword	Reserved keywords	function, class, if, def
.string	String literals	"Hello World"
.number	Numeric values	42, 3.14
.comment	Comments	// comment, # comment
.function	Function names	myFunction()