UtilityBaseDeveloper Tools
XML Formatter & Converter
Beautify or minify XML, and convert between XML and JSON, with inline error reporting.
Updated July 10, 2026
How to use the xml formatter & converter
- 1Choose Format, XML → JSON, or JSON → XML.
- 2Paste your XML or JSON.
- 3For Format, toggle minify if you want it compact.
- 4Read the result or fix any inline error.
Common uses
- Tidying messy XML for readability
- Converting an XML API response to JSON
- Turning JSON config into XML
- Minifying XML to save space
Frequently asked questions
How does XML to JSON conversion handle attributes?
Attributes become keys prefixed with @ in the JSON, so <note category="x"> gives a property "@category": "x". This keeps attributes distinct from child elements and lets you convert back to XML without losing them.
What happens with repeated tags?
When an element has several children with the same tag name, they're grouped into a JSON array, which correctly represents lists of items and round-trips back to repeated XML elements.
Does it validate my XML?
It parses the XML and reports errors inline if it's malformed — an unclosed tag or a stray character, for example — so you can find and fix the problem before formatting or converting.
About this tool
The XML formatter re-indents messy XML for readability or minifies it to a single line, and converts both ways between XML and JSON. The converters preserve structure — element attributes become keys prefixed with @, repeated tags become arrays, and text content is kept — so nesting and attributes survive the round trip that trips up simpler tools. Parse errors are reported inline. Everything is processed in your browser; nothing you paste is uploaded.
Like most tools on UtilityBase, the xml formatter & converter runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more developer tools here.
Was this tool helpful?
Related tools
JSON Formatter
Format, validate, and minify JSON with precise error locations.
Developer Tools
YAML to JSON Converter
Convert YAML to JSON and JSON to YAML in your browser, with inline parse errors.
Developer Tools
CSV to JSON Converter
Convert CSV to JSON and JSON back to CSV — quotes and commas handled properly.
Developer Tools
HTML Formatter
Beautify or minify HTML in your browser, with byte savings shown on minify.
Developer Tools
What Is My IP
Your public IP, and exactly what it reveals — location, ISP, timezone.
Developer Tools
Regex Tester
Test regular expressions live with match highlighting, groups, and a cheat sheet.
Developer Tools