Web
XML Formatter
Format, indent and validate XML documents. Preserves attributes, CDATA and comments — 100% in-browser.
Output will appear here…Why use our XML Formatter?
100% private
Everything runs in your browser. Your data never leaves your device — safe for production payloads.
Instant results
No round trips, no rate limits, no login. Format, validate and inspect megabytes of JSON in milliseconds.
Standards-first
Follows RFC 8259 / ECMA-404 exactly. Reports errors with precise line and column diagnostics.
Related developer tools
CSS Formatter
Format and beautify CSS or SCSS with consistent whitespace, property ordering and rule indentation.
OpenGraphQL Formatter
Pretty-print GraphQL queries and schemas with consistent indentation. Handy for readable queries in code review.
OpenHTML Formatter
Beautify HTML with consistent indentation, wrap long attributes and preserve inline scripts. Powered by js-beautify.
OpenMarkdown Formatter
Clean up Markdown — normalize blank lines, trim trailing whitespace, spacing around headings.
OpenSQL Formatter
Format and beautify SQL queries with keyword casing, indentation and clean line breaks. Supports MySQL, PostgreSQL, T-SQL.
OpenTypeScript Formatter
Beautify TypeScript source with consistent indentation and spacing. Powered by js-beautify.
OpenRelated reading
Deep-dive guides that pair well with the XML Formatter.
Comparisons
JSON Formatter vs JSON Validator: what's the difference?
Formatters make JSON readable. Validators prove it is correct. Here's when to reach for each — and why great tools do both.
ReadGuides
What is JSON? A developer's introduction
Understand the JSON data format, its history, and why it dominates modern APIs and configuration files.
ReadComparisons
JSON vs XML: which should you use?
Compare readability, verbosity, tooling, schema support and performance between JSON and XML in modern systems.
Read