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Formatter & Minifier

Beautify or minify JSON, XML, HTML, CSS, JavaScript, and SQL.

JSON Formatter
Format JSON with readable indentation while preserving data.
JSON Minifier
Compress JSON to a single line by removing all whitespace.
JSON Diff
Compare two JSON documents and see every difference by path.
JSON to XML Converter
Convert JSON objects into formatted XML with proper escaping.
XML to JSON Converter
Convert XML documents into clean, readable JSON.
XML Formatter
Pretty-print XML with consistent indentation.
XML Minifier
Strip whitespace from XML to shrink document size.
HTML Beautifier
Re-indent messy HTML into clean, readable markup.
HTML Minifier
Shrink HTML by removing comments and extra whitespace.
CSS Beautifier
Format CSS rules with one declaration per line.
CSS Minifier
Compress CSS by stripping comments and whitespace.
JavaScript Beautifier
Re-indent JavaScript with consistent brace style.
JavaScript Minifier
Compress JavaScript by removing comments and whitespace.
SQL Formatter
Format SQL queries with clauses on their own lines.
SQL Minifier
Collapse SQL to a single line for compact storage.

Formatter & Minifier — About These Tools

Formatters and minifiers take messy or compressed code and turn it into something readable — or the reverse: shrink files to the smallest valid size for production. Every tool below parses your input in the browser and reprints it with deterministic, spec-compliant output.

Frequently asked questions

Are these formatters safe for private code?

Yes. Formatting and minification run entirely in your browser — your code is never sent to a server, logged, or stored.

What is the difference between formatting and minifying?

Formatting adds whitespace and indentation for readability; minifying removes every unnecessary byte to shrink the file. You need both: format while developing, minify before shipping.

Can formatter tools fix invalid syntax?

No. A formatter preserves your code exactly and only changes whitespace. If the input has syntax errors, the tool reports the error position instead of guessing a fix.

Other categories

Hash & CryptographyNumber ConversionString & TextImage Utilities