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XML 格式化与验证器

在浏览器中格式化、验证和压缩 XML，精确定位解析错误的行和列。

是什么如何使用使用示例常见使用场景常见问题

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#xml-formatter#xml-validator#xml-beautifier#xml-minifier#xml-parser

XML Formatter & Validator

Format, validate, and minify XML instantly in your browser. Exact parse error location surfaced on failure.

Indent:
Paste your XML here
Read Only

Preview will appear here

可以解决的问题

How do I find the exact line causing an XML parse error?

Paste the XML into the formatter. If invalid, the error panel below the input shows the exact line and column number reported by the browser's DOMParser. Fix the highlighted location and re-paste to confirm the error is resolved.

How do I remove all whitespace from XML to reduce payload size?

Click the "Minify" button after pasting your XML. The output removes all inter-element whitespace and collapses the document to a single line suitable for HTTP transport or embedding in JSON strings.

Can I use this to format SOAP envelope XML?

Yes. SOAP envelopes are standard XML and format correctly. Paste the full envelope including the Envelope, Header, and Body elements, and the tool will indent each level cleanly.

Should I format XML or convert it to JSON first?

Format XML when the consuming service or spec requires XML. Use the CSV/JSON Converter or JSON Formatter if you've already converted to JSON. Formatting XML directly is faster and preserves attributes and CDATA sections that can be lost during conversion.

Can I use this to format Android AndroidManifest.xml?

Yes. AndroidManifest.xml is standard XML. Paste it directly to format with consistent indentation, making it easier to review permission declarations and activity configurations before committing.

典型使用流程

JSON Validator – Check JSON Syntax & Find ErrorsJSON Formatter – Beautify & Pretty Print JSON OnlineXML 格式化与验证器JSON Formatter – Beautify & Pretty Print JSON OnlineYAML Formatter & Validator

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是什么

XML 格式化与验证器 是什么

The XML Formatter & Validator instantly formats messy or minified XML into human-readable, indented output — directly in your browser without uploading anything. Powered by the browser's native DOMParser, it provides accurate structural validation and surfaces parse errors with the exact line and column number so you can fix problems fast.

Whether you're debugging an API response, editing a configuration file, or preparing XML for a SOAP service, this tool handles the tedious formatting work and catches errors before they reach production. Choose between 2-space and 4-space indentation, minify for transport, or format for readability — all with a single click.

如何使用

如何使用XML 格式化与验证器

1. Paste your XML into the left panel, or click "Load Example XML" to try a sample.

2. The right panel shows the formatted output in real time. If there's a parse error, the exact location is shown below the input.

3. Use the Indent selector to choose 2 or 4 spaces.

4. Click "Minify" to compact the XML for transport, or "Format" to re-expand it.

5. Click "Copy" to copy the formatted output to your clipboard.

使用示例

使用示例

Input (minified):
<?xml version="1.0"?><catalog><book id="1"><title>Developer Guide</title><price>44.95</price></book></catalog>

Output (formatted, 2-space indent):
<?xml version="1.0"?>
<catalog>
  <book id="1">
    <title>Developer Guide</title>
    <price>44.95</price>
  </book>
</catalog>

常见使用场景

常见使用场景

1. Beautify API responses: Format XML returned by REST or SOAP endpoints for easier reading and debugging.

2. Config file editing: Format Spring, Maven, or Android XML configs before committing to version control.

3. Validate before deployment: Check that XML is well-formed before sending to an external service or parsing in code.

4. Minify for transport: Strip whitespace from XML before embedding in HTTP requests or payloads.

5. Diff preparation: Format two XML documents consistently before running a diff to reduce noise.

6. RSS/Atom feed debugging: Validate feed XML structure to ensure readers will parse it correctly.

常见问题

常见问题

Does this tool upload my XML anywhere?v
No. The formatter uses the browser's built-in DOMParser API. Your XML never leaves your machine.
What XML dialects does this support?v
Any well-formed XML 1.0 document is supported, including SVG, RSS, Atom, SOAP envelopes, Maven POM files, Android manifests, and custom schemas.
What does the parse error show?v
The tool extracts the line number and column number from the browser's DOMParser error message and displays it inline below the input field.
Can it handle XML with namespaces?v
Yes. Namespace declarations (xmlns, xmlns:prefix) are preserved as-is during formatting and minification.
What's the difference between formatting and validation?v
Formatting re-indents XML for readability. Validation checks that the structure is syntactically correct XML — it does not validate against an XSD schema.