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XML Formatter

Format, minify, and validate XML locally in your browser with readable output and helpful parse errors.

XML Input

Paste XML to validate, pretty-print, or minify it in your browser.

Output

Parsed XML is serialized before output, so invalid markup is caught first.

About This Tool

The XML Formatter validates XML with the browser parser, then outputs either readable indentation or a compact minified version. It is useful for inspecting configuration files, API payloads, feeds, SVG fragments, sitemap snippets, and other XML-based documents.

ToolPool runs this utility in your browser, so your input stays on your device and is not uploaded to our server.

How To Use This Tool

  1. 1Paste XML into the input editor.
  2. 2Choose Format for indented output or Minify for compact output.
  3. 3Fix any parser errors, then copy the generated XML.

Benefits

Validates XML before producing output.
Supports both pretty-print and minify workflows.
Runs locally for private payloads and configuration snippets.

Common Use Cases

  • Formatting an XML API response before debugging it.
  • Minifying a small XML snippet for storage or transport.
  • Checking sitemap or feed markup before publishing.
  • Reading nested configuration files more comfortably.

Workflow Tips

XML Formatter is designed for quick browser work, but it is still worth reviewing the result before you use it in a live project, client document, public page, or production workflow. Keep an original copy of important source material, compare the output with what you expected, and repeat the task with slightly different settings when quality, formatting, or accuracy matters.

For larger workflows, pair this page with HTML Encoder / Decoder, JSON Formatter, YAML JSON Converter, URL Encoder / Decoder. Moving between related utilities can save time when you need to clean source data, prepare web assets, create supporting IDs, check calculations, or package output for another system. Internal links also make it easier to stay in one private workspace instead of jumping between several single-purpose sites.

The local processing model helps protect sensitive content because ToolPool does not need to receive your files, text, or form values to complete the task. Good privacy habits still matter after the result leaves the page: avoid pasting unnecessary secrets, check downloaded files before sharing them, and clear the workspace when you are finished on a shared computer.

FAQ

Can this fix broken XML automatically?

No. It reports parser errors so you can correct invalid tags, attributes, or nesting.

Does XML formatting happen on the server?

No. The browser DOMParser and XMLSerializer APIs handle parsing and output locally.

Can I minify XML?

Yes. Use the Minify button to serialize XML without extra formatting whitespace.

Why did the output change spacing?

The tool serializes parsed XML, so formatting whitespace may be normalized around tags.

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