About this online online XML formatter
hidevtool XML formatter tidies XML from SOAP responses, config files, sitemaps, and build logs. Paste raw markup, then pretty-print for reading or minify for a smaller payload.
The tool parses with the browser XML engine, adds consistent indentation for nested elements, and reports malformed tags or broken structure before showing output.
Online XML formatter capabilities
Pretty-print and validate XML
Format parses your paste and rewrites it with indented tags and attributes on separate lines. Comments are kept. If the document is not well-formed, you get a clear invalid-XML message instead of partial output.
Minify XML
Minify runs the same parse step, then removes line breaks and extra space between tags so the document stays valid XML in as few characters as possible—handy for logs or size-sensitive payloads.
Common use cases
How do I format XML online?
Paste your XML into the input box and click Format. The tool indents nested elements and attributes so you can read configs, SOAP envelopes, or sitemap files more easily.
How do I pretty-print minified one-line XML?
Paste compact XML without line breaks and run Format. Indentation is restored while the structure stays the same—useful for API or message-queue payloads copied as a single line.
How do I check whether XML is valid?
Format and Minify both parse the document first. Unclosed tags, bad nesting, or illegal characters trigger an error message so you can fix the source before copying the result.
Frequently asked questions
- How do I format XML online?
- Paste your XML into the input box and click Format. The tool indents nested elements and attributes so you can read configs, SOAP envelopes, or sitemap files more easily.
- How do I pretty-print minified one-line XML?
- Paste compact XML without line breaks and run Format. Indentation is restored while the structure stays the same—useful for API or message-queue payloads copied as a single line.
- How do I check whether XML is valid?
- Format and Minify both parse the document first. Unclosed tags, bad nesting, or illegal characters trigger an error message so you can fix the source before copying the result.
- What is the difference between formatting and minifying XML?
- Formatting adds indentation and line breaks for humans. Minifying strips whitespace between tags while keeping the same element tree—better when you need a shorter valid XML string.
- How do I clean up XML from an API or log line?
- Copy the XML fragment into the formatter and click Format. Nested nodes line up with consistent spacing; if the snippet is truncated or escaped incorrectly, the parser error points you to fix it first.