Code & Formatting

Format, beautify, minify, and compare code with free online code formatting tools for web developers and programmers. Improve the readability of HTML, CSS, JavaScript, and SQL, reduce supported code with minifiers, preview Markdown, and compare text or code changes. Use these browser-based utilities to simplify code cleanup, review changes, and routine development tasks.

TOOLS

Free Code & Formatting Tools

10 tools

🔍Regex TesterTest regular expressions online. Check pattern matches against sample text and troubleshoot regex syntax with this free regular expression tester.→🔤Regex GeneratorStart from common regex patterns for email, URL, phone, date, IPv4 and more, edit them, and test them against your own sample text.→🗄️SQL FormatterFormat SQL queries online with readable indentation and organized clauses. Clean up database queries for debugging and code reviews.→🏷️HTML FormatterFormat and beautify HTML online with clean indentation and readable markup. Organize HTML code for easier debugging, editing, and maintenance.→🎨CSS FormatterFormat and beautify CSS online with consistent indentation and organized style rules. Make stylesheets easier to read, debug, and maintain.→📜JavaScript FormatterFormat and beautify JavaScript online with consistent indentation and readable code structure. Simplify debugging, code reviews, and maintenance.→🗜️HTML MinifierMinify HTML online by removing unnecessary whitespace and comments where supported. Reduce HTML file size and prepare markup for website deployment.→🗜️CSS MinifierMinify CSS online by removing unnecessary whitespace and formatting characters. Reduce stylesheet size and prepare CSS for faster website delivery.→🗜️JavaScript MinifierMinify JavaScript online to remove unnecessary characters and reduce script size. Prepare compact JavaScript for production websites and applications.→📝Markdown PreviewerPreview Markdown online and see how your formatted text renders. Check headings, lists, links, and code blocks for README files and documentation.→