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XML Tool

Format XML for readability, minify it for transport, validate syntax, or escape/unescape XML for safe display. Everything runs locally in your browser.

Category: Developer · URL: /tools/xml-tool.html

Input XML

Spaces (0–8)

Output (read-only)

Related tools:
Online XML Converter XML Converter to Excel XML Converter to PDF YAML Formatter Hash Tool Regex Checker (JS) Regex Checker (Java) UUID Generator
Privacy: runs locally in your browser. No uploads, no tracking scripts.

How to use

Paste your XML, choose an action, and copy the result.

  1. Paste XML into the input box.
  2. Choose Format (pretty), Minify (compact), or Validate (checks well-formedness).
  3. Optional: use Escape/Unescape to encode/decode entities.
  4. Copy the output or hit Reset to start over.
Keywords this page targets (natural cluster): xml tool, xml formatter, pretty print xml, xml minify, xml validator, validate xml online, format xml online, minify xml online, escape xml, unescape xml, xml beautifier, xml parser error fix, remove whitespace xml, xml pretty print indent, xml cleanup, xml well formed check, xml to single line, xml encode for html, xml decode entities, xml linter
Secondary intents covered: Pretty print XML with a chosen indentation size, Minify XML to a compact single-line output, Check whether XML is well-formed and find parse errors, Escape XML into entities for safe sharing in HTML/Markdown, Unescape entity-encoded XML back to raw markup, Copy cleaned XML output quickly for use in code or configs, Quickly inspect root element name and element count, Normalize whitespace-only nodes between tags

FAQ

Does this XML tool upload my data?

No. Formatting, minifying, and validation run locally in your browser with no network calls.

What does “Validate” check?

It checks whether the XML is well-formed (proper nesting, closed tags, valid characters) and shows a parse error if not.

Why do I see a parser error?

Common causes are mismatched closing tags, missing quotes in attributes, or invalid characters like an unescaped &.

Will formatting change my XML meaning?

It only changes whitespace and indentation. Text content is preserved, but purely whitespace-only text nodes between tags may be normalized.

What is Escape/Unescape used for?

Escape converts markup into entities (e.g., <, &) for safe display; Unescape reverses that.

Can this keep the XML declaration (e.g., <?xml version="1.0"?>)?

Browsers often omit the declaration when parsing/serializing. If you need it, add it back manually after formatting/minifying.

How large of an XML file can it handle?

It depends on your device and browser. For very large XML, prefer minify/validate first and avoid repeated formatting.