Data Formatting
Messy, minified code slowing you down? Paste it in, pick your language, and get clean, properly indented output in a snap. Covers JSON, XML, YAML, HTML, CSS, JavaScript, SQL, Java, and Python — no plugins, no sign-up.
Data Formatting
JSON Formatter
Free online JSON formatter, validator, minifier, and tree viewer with syntax highlighting. Beautify JSON, detect errors, and clean up data in your browser.
XML Formatting Tool
Free online XML formatter with auto-indentation, validation & minification. Customize indentation settings, quickly detect XML format errors.
YAML Formatting Tool
Free online YAML formatter with syntax checking, auto-indentation & format conversion. Handle config files easily, spot syntax issues instantly.
HTML Formatting Tool
Free online HTML formatter with code beautification, minification & syntax highlighting. Clean up messy HTML code instantly, improve readability.
CSS Formatting Tool
Free online CSS formatter with beautification, minification and syntax highlighting. Organize stylesheets and optimize code quality.
JavaScript Formatting Tool
Free online JavaScript formatter with code beautification, minification & syntax checking. Clean up JS code instantly, improve code readability.
SQL Formatter
Free online SQL formatter with beautify, minify, keyword case conversion, and syntax highlighting. Clean up SQL queries and make them easier to read.
Java Formatter
Free online Java formatter with code beautification, minification & syntax checking. Clean up Java code instantly, improve code readability.
Python Formatter
Free online Python formatter with code beautification, minification & syntax checking. Clean up Python code instantly, improve code readability.
What this category can do
Formatting tools make existing code and structured data easier to read without changing the target language. This category is for JSON, XML, YAML, HTML, CSS, JavaScript, SQL, Java and Python that already exists but is compressed, poorly indented or hard to review. Use these tools when you need clearer layout; use converter tools when the target format itself must change.
Most tools process input in the browser when possible. For files, tokens, documents or network checks, review the selected tool before using sensitive data.
Common use cases
- Inspect an API JSON response copied from browser devtools or server logs.
- Review YAML, XML or HTML configuration before committing a deployment change.
- Expand minified CSS, JavaScript or SQL so a bug can be traced line by line.
FAQ
Will formatting change the behavior of my code?
It should only change whitespace, indentation and line breaks. If the input is invalid, the tool may fail or format only part of it.
Why does valid-looking JSON or YAML fail?
A missing quote, trailing comma, tab indentation or unclosed bracket is enough to break parsing. Copy the exact error position if the tool shows one.
Should I format SQL before running it?
Formatting helps review joins, conditions and nesting, but it does not validate business logic or database-specific syntax.
Can formatting restore comments from minified code?
No. A formatter can expand layout, but comments and original variable names removed during minification cannot be recovered.
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