XML Formatter

Use XML Formatter to turn compact or messy XML into readable indentation, validate well-formed markup, minify when you need a smaller payload, and copy or download the result from the same browser tab.

Format messy XML, validate well-formed tags, or minify markup for compact payloads.

Use browser-side parsing for manifests, feeds, SVG, SOAP snippets, and config files.

  • Format XML without uploading data.
  • Validate tags before copy.
  • Download clean .xml output.

Format and validate XML online

Use XML Formatter by loading XML, checking well-formedness, then choosing readable indentation or compact minified markup.

  1. 1

    Paste or upload XML

    Paste XML into the editor or upload a .xml, .svg, or .xhtml file. The page checks whether the markup parses before formatting or minifying starts.

  2. 2

    Choose readable or compact output

    Click Format for readable indentation when reviewing nested tags, attributes, namespaces, comments, or feed entries. Use Minify when the destination needs compact XML text.

  3. 3

    Review and save the XML

    Read the validation message, scan the edited markup for spacing-sensitive content, then copy or download the XML only after the structure still matches the source.

XML source editor

Paste markup directly, upload common XML-based files, or load sample content when you need a safe structure before editing your own data.

Format and minify controls

Format inserts line breaks and indentation for review, while Minify removes unnecessary whitespace between tags for smaller copied payloads.

Well-formedness check

The browser parser flags broken nesting, missing closing tags, invalid syntax, and unexpected parser errors before the tool changes output.

Copy and download output

Use the same toolbar to copy the current XML or download a timestamped .xml file after validation and review.

Useful XML file coverage

The uploader accepts .xml, .svg, and .xhtml files, which covers common feeds, vector markup, manifests, and web document snippets.

Local handling reminder

The workspace is convenient for quick cleanup, but secrets, keys, and private customer data should be removed unless policy allows browser-side review.

XML Formatter privacy and processing

XML Formatter shows where parsing happens, what stays in the open page, and why sensitive markup should be reviewed carefully before formatting or minifying.

Browser XML parser

XML Formatter validates markup with the browser parser, then rewrites the same editor content as indented XML or compact minified XML.

Storage None

XML Formatter keeps pasted text, uploaded file contents, validation state, and generated output in the open page only; refresh clears the working session.

XML Formatter account access

XML Formatter works without sign-in for readable XML cleanup, quick validation checks, SVG inspection, feed review, and compact XML export.

Before You Use XML Formatter

Check these XML details before using formatted, minified, or validated markup in another parser.

Privacy

Formatting runs in your browser, but remove credentials, tokens, private endpoints, and customer identifiers unless policy allows local tab review.

Uploaded XML is read as text for the current page; refreshing or clearing removes the working copy from the editor.

Input Quality

XML must be well-formed before formatting, so close every tag and repair broken nesting first.

Namespaces, CDATA, comments, and mixed content may be meaningful, so scan the result before replacing source files.

Output

Formatted XML improves readability, but it should not be treated as schema validation against XSD, DTD, or business rules.

Minified XML removes whitespace between tags, which is useful for payloads but less comfortable for manual review.

Limits

XML Formatter parses XML text in the browser; very large documents, deeply nested tags, or long text nodes can slow validation, formatting, and minified preview updates.

Questions about XML Formatter

What does XML Formatter do?

XML Formatter makes XML easier to inspect by adding indentation, checking well-formed markup, or minifying tag spacing before you copy or download the result.

Can XML Formatter validate against XSD or DTD?

It checks whether the XML is well-formed in the browser. It does not perform XSD, DTD, Relax NG, or custom business-rule validation.

Does XML Formatter upload my file?

No. File upload reads the selected XML-based file into the browser page, and formatting, minifying, validation, copy, and download actions happen locally.

When should I use Format instead of Minify?

Use Format when humans need to review nested tags, attributes, or namespaces. Use Minify when a compact payload matters more than readability.

Why did formatting fail?

Formatting fails when the browser parser cannot read the source because of broken tags, invalid nesting, unsupported characters, malformed declarations, or incomplete markup.

Can I use XML Formatter for SVG or XHTML?

Yes. The uploader accepts .svg and .xhtml files because both use XML-style markup, but you should still inspect visual or browser behavior after saving.

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