Parsing uses deterministic rules that preserve field and type boundaries.
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Data & developer
XML Formatter & Validator
Parses XML with the browser DOMParser API, surfaces parser errors, and produces readable or minified output. It does not perform XSD validation, external entity resolution, or XML digital-signature verification.
✓ Free✓ No account✓ In-browser
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What does this tool do?
Validate, format, or minify XML syntax locally.
APPLICATION AND DECISION GUIDE
XML Formatter & Validator: method and usage
Parses XML with the browser DOMParser API, surfaces parser errors, and produces readable or minified output. It does not perform XSD validation, external entity resolution, or XML digital-signature verification.
Well-formed XML with a single root element Confirm the shape first with a small example containing no personal data.
a parsed structure, field metrics, and explicit syntax findings
Practical steps
- Paste the XML document and select an output mode.
- Run local parsing and inspect any error location.
- Validate formatted output separately against the target XSD or application.
field names, value types, escaping, and empty or null values compared with the source
Verify schema, encoding, and data-loss assumptions in the target system.
Suitable use cases
- Inspecting API/XML responses
- Editing configuration files
- Finding unclosed tags
LEARN THE WORKFLOW
Guides for this tool
Safely Converting YAML, XML, JSON, and CSV in the Browser
A parsing, flattening, deduplication, and schema-validation workflow that avoids silent data loss.
Read guide →Reliable Scheduling with Cron and Unix Time
Prevent time zones, DST, field order, and second-vs-millisecond mistakes from breaking scheduled jobs.
Read guide →ABOUT THIS TOOL
Frequently asked questions
What input does XML Formatter & Validator accept?+
Well-formed XML with a single root element Paste the XML document and select an output mode.
What does XML Formatter & Validator return?+
a parsed structure, field metrics, and explicit syntax findings Parsing uses deterministic rules that preserve field and type boundaries.
How should I validate XML Formatter & Validator output?+
field names, value types, escaping, and empty or null values compared with the source
Does XML Formatter & Validator send or store input on a server?+
Tool input is processed in the active tab. Saving to the Workstation or transferring to another tool is a separate choice. Consider browser extensions and shared devices separately; the privacy page explains advertising and network connections.