Developer Tools

Beautify JSON with your choice of indentation.

Validate JSON and pinpoint the exact line and column of any error.

Strip whitespace from JSON to shrink configs and payloads.

Pretty-print XML with proper indentation and line breaks.

Check XML for well-formedness and see exactly where problems start.

Indent and beautify messy HTML markup.

Remove comments and redundant whitespace from HTML.

Beautify stylesheets with clean, consistent indentation.

Compress CSS by removing comments, spaces and trailing semicolons.

Minify JS safely with the industrial-strength Terser engine.

Beautify JavaScript with Prettier-quality output.

Format SQL queries with standard keyword casing and indentation.

Collapse SQL into a single line, ready for embedding.

Test regular expressions live with match highlighting and capture groups.

Generate one or many random UUID v4 identifiers with one click.