Free XML Tools — Format, Validate & Convert
Format, validate, convert, and query XML directly in your browser. No data is sent to any server — everything runs locally.
XML Formatter & Beautifier
Paste minified or unformatted XML to pretty-print it with proper indentation. Comments, CDATA, and processing instructions are preserved.
All XML tools
XML Formatter & Beautifier
Pretty-print minified XML with 2-space, 4-space, or tab indentation. Preserves comments and CDATA.
XML Validator
Check XML well-formedness: unclosed tags, bad nesting, unescaped characters — with line and column errors.
XSD Schema Validator
Validate XML against an XSD schema: structure, cardinality, required attributes, and type restrictions.
XML to JSON Converter
Convert XML to JSON with @-prefix attributes and automatic arrays — xml2js/xmltodict compatible.
XML to CSV Converter
Flatten XML records into CSV with automatic record detection and configurable delimiters.
XML Minifier
Strip whitespace to compress XML for production payloads — with before/after size comparison.
XPath Tester
Evaluate XPath 1.0 expressions live against your document, with typed results and example queries.
Every tool runs 100% in your browser — no uploads, no accounts, no limits. Validating SEPA or payment files specifically? Try the SEPA XML Validator or the ISO 20022 Viewer.