Code Formatters & Beautifiers
Format, beautify, and minify code in HTML, CSS, JavaScript, SQL, and XML. All tools are free, run in your browser, and require no signup.
HTML Beautifier
Format and indent HTML code for readability.
XML Formatter & Validator
Format, beautify, and validate XML data with indentation options.
SQL Formatter & Beautifier
Format SQL queries with keyword casing and indentation options.
CSS Minifier & Beautifier
Minify CSS to reduce file size or beautify for readability.
JavaScript Minifier & Beautifier
Minify JavaScript to reduce file size or beautify for readability.
TOML Formatter & Converter
Format, minify, and convert TOML data with bidirectional JSON conversion.
YAML Formatter, Validator & Minifier
Format, validate, and minify YAML data online with configurable indentation and instant error detection.
Choose the Right Formatter
- HTML Beautifier — format and indent HTML markup for readability
- CSS Minifier & Beautifier — minify CSS for production or beautify for development
- JavaScript Minifier & Beautifier — compress JS files or expand minified code
- SQL Formatter — format SQL queries with keyword casing and indentation
- XML Formatter — beautify and validate XML documents
- TOML Formatter — format, minify, and convert TOML with bidirectional JSON conversion
Beautify vs. Minify: Which Do I Need?
Every formatter above supports both directions. Here's when to use each:
- "I'm debugging / reading someone else's code" → Beautify. Adds indentation and line breaks so you can trace logic, set breakpoints, and understand structure
- "I'm deploying to production" → Minify. Strips whitespace, shortens variable names (JS), and removes comments to reduce file size. Smaller files = faster page loads
- "I'm committing to version control" → Beautify. Formatted code produces cleaner git diffs — reviewers see actual logic changes, not whitespace noise
- "I'm sharing a code snippet" → Beautify. Readable code communicates intent better in Stack Overflow answers, docs, and Slack messages
Which Formatter for Which Language?
- Pasted HTML from browser DevTools → HTML Beautifier — fixes the mangled indentation that browser inspectors produce
- Minified CSS from a production bundle → CSS Beautifier — expands one-line rules into readable declarations
- Webpack/Rollup output JS → JS Beautifier — re-indents bundled code for debugging (won't restore variable names)
- Complex SQL queries → SQL Formatter — aligns JOINs, indents subqueries, and uppercases keywords for readability
- API response XML / SOAP envelopes → XML Formatter — adds proper nesting for deeply nested XML documents
- Rust/Python config files → TOML Formatter — normalizes TOML with JSON conversion for cross-format workflows
Why Format Your Code?
Consistent code formatting improves readability, reduces merge conflicts, and makes code reviews faster. Professional teams use formatters like Prettier, ESLint, and Black to enforce consistent style. These online tools give you instant formatting without installing anything.
Other Developer Tools
Frequently Asked Questions
- What does a code formatter do?
- A code formatter automatically restructures source code with consistent indentation, line breaks, and spacing. This makes code easier to read, debug, and maintain without changing its functionality.
- What is the difference between beautifying and minifying?
- Beautifying (formatting) adds whitespace and indentation for human readability. Minifying removes all unnecessary whitespace to reduce file size for production deployment. Both are available in our formatter tools.
- Do these formatters change my code logic?
- No. Formatting only changes whitespace, indentation, and line breaks. Your code logic, variable names, and functionality remain exactly the same.