XML Formatter Online

What this Developer tool does

Formatea marcado tipo XML con sangría legible. It helps developers format, validate, encode, decode, inspect, generate, or debug small pieces of technical data.

XML Formatter helps with developer work directly in the browser. Use it for fast formatting, encoding, decoding, hashing, validation, and debugging tasks.

How to use XML Formatter

1. Open the live tool at /tools/xml-formatter.
2. Paste the relevant code, token, JSON, CSV, URL, color, cron expression, regex pattern, or technical text into the input field.
3. Run XML Formatter and check the generated result before using it in production work.

Best use cases for XML Formatter

• Debug API responses, configuration snippets, tokens, and structured data.
• Prepare clean output for documentation, tickets, tests, or code review.
• Avoid opening heavy desktop tools for quick developer checks.

Examples and checks for XML Formatter

Example inputs

• A SOAP response or API error body
• An RSS or Atom feed
• A configuration or manifest file

Common mistakes to avoid

• Formatting XML that is not well-formed and blaming the output
• Indenting a document whose whitespace is significant
• Assuming a formatted file has been validated against a schema

Output checklist

• Confirm tags are balanced and attributes quoted
• Check text content is unchanged apart from indentation
• Validate against the schema separately if that matters

Use test data where possible and avoid live credentials, private keys, passwords, or production tokens.

XML Formatter inputs

Paste the relevant code, token, JSON, CSV, URL, color, cron expression, regex pattern, or technical text into the input field.

XML Formatter output

The result is formatted, validated, decoded, encoded, generated, or explained output ready to copy into a development workflow.

Review before publishing

Do not paste production secrets, private keys, or sensitive credentials into any online utility unless you understand the risk.

Free usage limits and upgrades

The current free plan allows 20 daily runs. Pro allows 500 daily runs, and Business allows 3000 daily runs for heavier repeat work.

• XML Formatter input workspace
• XML Formatter result preview
• Copy or download ready output
• Free daily runs with paid upgrade limits

Compare Free, Pro, and Business plans for higher daily limits, larger uploads, longer file history, and repeat workflows.

Frequently asked questions

Is XML Formatter free to use?

Yes. XML Formatter is available on the free plan with 20 daily runs. Paid plans add higher quotas for repeat work.

What happens if my XML is not well-formed?

Formatting depends on balanced tags and quoted attributes, so a missing closing tag or a stray angle bracket produces an error or garbled indentation instead of a tidy file. This is a formatter, not a validator, so fix the structure first.

Will formatting change what the XML means?

Not for well-formed input, with one exception: whitespace between elements is text content in XML, so consumers that treat it as significant, such as some signing and messaging workflows, may see a difference. Compare before and after if that applies to you.

How are CDATA blocks and attributes treated?

Attributes stay on the opening element line while child elements move to their own indented lines. Text inside a CDATA block is left byte-for-byte as written, because it is literal content that must not be reindented or escaped.

Does formatting make the file bigger?

Yes, indentation adds whitespace bytes, which is why production XML is usually sent minified and compressed. Format for reading and debugging, and minify for the wire.

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• Base64 Decoder - Decode Base64 strings into readable text.
• URL Encoder - Percent-encode text for safe URL query strings and paths.