XML Formatter
Use this free XML Formatter to quickly get accurate results in seconds, free and instantly offline with no signup required ever, trusted by professionals in Austin, Chicago, Miami, Denver, Seattle, and New York for reliable daily use without accounts, subscriptions, limits, or delays on any device for everyday personal and business workflows daily.
Format, beautify and validate XML/HTML instantly in your browser. Free online XML formatter with indentation control — no data uploaded.
Calculator Inputs
About XML Formatter
Use this free XML Formatter to quickly get accurate results in seconds, free and instantly offline with no signup required ever, trusted by professionals in Austin, Chicago, Miami, Denver, Seattle, and New York for reliable daily use without accounts, subscriptions, limits, or delays on any device for everyday personal and business workflows daily.
How XML formatting works in seconds: Paste any XML or HTML fragment and the tool parses it with DOMParser, checks for well-formedness (single root element, properly closed tags, correct attribute quoting), and re-prints it with your chosen indentation — 2 spaces, 4 spaces, or tab. The formatted output highlights nesting depth, attribute placement, and CDATA sections. Results appear instantly at $0 cost in your browser with no uploads to any server required.
Why XML formatting matters for USA teams: Minified XML is nearly impossible to read or debug in production logs or API responses. Austin backend developers formatting $2,000 per month API responses waste 30 minutes per session manually indenting SOAP envelopes and XML payloads by hand. Chicago data teams working with $15,000 configuration XML schemas need readable output to spot structural errors before deployment on 08/12/2026. Miami mobile developers validating $500 per app SOAP payloads cannot afford silent XML parsing failures that crash apps on 09/01/2026 and trigger costly support tickets from users.
Well-formedness checking: The tool validates that XML has a single root element, every opening tag has a matching close tag, attributes are properly quoted, and text content does not appear at the document root level. If the input fails validation, the tool reports the specific error so you can fix it immediately. This catches common copy-paste mistakes, missing closing tags, and unescaped ampersands that break parsers in production systems running at scale.
Configurable indentation options: Choose between 2 spaces for compact output, 4 spaces for deep nesting visibility, or tab indentation to match your team coding style guide. The tool preserves CDATA sections, attribute ordering, and self-closing tags through the formatting process. Denver DevOps engineers cleaning $10,000 per Kubernetes manifests and Seattle documentation teams formatting $3,000 per month RSS feed XML can standardize formatting across their entire codebase with consistent rules applied uniformly.
Privacy, local execution, and practical workflow: All parsing and formatting runs entirely in your browser. No XML data is transmitted to any server, stored, or logged. This makes the tool safe for processing proprietary API schemas, sensitive configuration files, and client data worth $50,000 per day in New York publishing environments. Paste your minified XML, select indentation, hit format, and copy the readable output. Use this for $2,000 per month API response formatting on 09/10/2026, $15,000 configuration schema reviews, $50,000 per day sitemap feeds, or $500 per app SOAP payload validation. Close the tab and all input vanishes with no signup required ever.
Where it is used
Austin backend developers formatting $2,000 per month API XML responses before 08/12/2026 code reviews, Chicago data teams pretty-printing $15,000 configuration XML schemas, Miami mobile developers validating $500 per app SOAP payloads, Denver DevOps engineers cleaning $10,000 per Kubernetes manifests, Seattle documentation teams formatting $3,000 per month RSS feed XML, and New York publishers tidying $50,000 per day sitemap XML feeds for search indexing.
How to use the XML Formatter
- XML to format — enter the value (e.g. <note><to>User</to><body>Hello</body></note>).
- Indentation — enter the value.
- Calculate — press the Calculate button to see the result instantly above.
Examples
Nested elements
Attributes
Invalid XML
Frequently Asked Questions
- What does "well-formed" mean?
- It means the XML follows the syntax rules: one root element, every tag closed, attributes quoted, and no stray text at the document root.
- Can it format HTML too?
- Strictly it expects XML rules. For looser, HTML-style documents use the HTML formatter instead.
- Is my XML data stored anywhere?
- No. All parsing and formatting runs locally in your browser. No data is transmitted, logged, or stored on any server.
- What indentation options are available?
- Choose 2 spaces, 4 spaces, or tab indentation. Select the option before formatting to match your team coding style.
- Can it handle CDATA sections?
- Yes. CDATA sections are preserved and properly indented. The tool parses them as a distinct node type in the DOM tree.
- Does it validate against an XSD schema?
- No. The tool checks well-formedness only — that the XML follows syntax rules. Schema validation against XSD or DTD requires a separate validator.