Browser XML workbench
XML Formatter
Paste an XML document, format it into readable indentation, validate parser errors, minify compact output, and download the result without sending the file to a server.
This XML Formatter is built for developers, content teams, data editors, and support agents who need a quick way to inspect nested tags, attributes, namespaces, and malformed XML before saving or sharing a file.
Input
Paste XML
Validation
Waiting for XML Paste XML to format, minify, or validate.Output
Formatted XML
How to use this XML Formatter
Paste XML into the input editor or upload a local `.xml` file. Choose an indentation style, then use Format XML to pretty print the document. The output pane updates with readable line breaks and nested indentation, while the status panel reports whether the browser parser accepted the document.
Use Minify XML when you need a compact document for a configuration field, request payload, feed test, or storage value. The XML Formatter keeps validation feedback next to the result so you can see whether compacting or formatting succeeded before you copy the output.
Supported input and output
The tool accepts plain XML text and local XML or text files that your browser can read. It produces formatted XML, minified XML, parser status, document stats, and a downloadable `.xml` file. It does not transform XML into JSON, XSD, CSV, or another data model.
This page can also act as a lightweight XML viewer online when you want to inspect a document before opening it in an editor. It is best for syntax review, indentation cleanup, and quick XML pretty print tasks, not for schema-aware validation.
Practical examples
When a formatter helps
Review a compact feed
Paste a single-line product feed and beautify XML so nested items, prices, and attributes are easier to scan.
Check a missing closing tag
Validate a document after editing by hand. If the parser sees malformed XML, the message often points to the line and column to inspect.
Prepare a config snippet
Use XML minifier output when a platform field expects compact markup, then keep the formatted version for review.
Compare indentation styles
Switch between two spaces, four spaces, and tabs when your team or editor has a preferred XML format.
Validation and review notes
Browser XML parsing is useful for catching common syntax problems such as unclosed tags, mismatched nesting, invalid characters, and duplicate declarations. The validation result is a parser check, not a guarantee that another system will accept the document for every business rule or schema requirement.
If an application requires a specific DTD, XSD, namespace rule, or feed specification, use this XML Formatter as a first-pass cleanup tool and then check the final output against that official requirement.
- Confirm that the root element is the one your system expects.
- Review parser errors before copying or downloading output.
- Keep a copy of the original XML when whitespace may matter to a downstream system.
- Use a schema-aware validator when your XML must match XSD or DTD rules.
What formatting changes and what it leaves alone
Formatting mainly changes whitespace between XML tags so the structure is easier to read. It does not intentionally rename elements, rewrite attributes, change text values, or convert the document into another format. That makes the tool useful for review, but it also means you should still compare important output with the original when whitespace-sensitive text nodes are part of your workflow.
Minifying does the opposite: it removes extra spacing between tags after the document parses successfully. Use the compact version for systems that prefer short payloads, and keep a formatted version nearby when another person needs to review the same XML document later.
Where this XML Formatter fits
Use this page as a fast first pass before opening a full XML editor, command-line tool, or schema validator. It is especially handy when you receive pasted markup in a ticket, copy a feed sample from a browser, or need to inspect a short configuration snippet on a shared computer.
For release workflows, pair the browser parser check with your application tests or official feed validator. A document can be well-formed XML and still fail a product feed rule, invoice schema, sitemap extension, or vendor-specific requirement.
FAQ
XML formatting questions
Does this XML Formatter upload my XML?
No. The formatter uses browser APIs for file reading, parsing, formatting, copying, and download. The page does not need a server upload to process the XML you paste or select.
Can it validate XML?
Yes, it performs a browser parser check and reports success or a parser error. It is not schema validation, so use a dedicated XSD or DTD validator when a specification requires one.
What is the difference between format and minify?
Format XML adds readable line breaks and indentation. Minify XML removes extra whitespace between tags so the document is more compact.
Can I use it as an XML viewer?
Yes. Paste or upload XML to see a readable output pane, root element, element count, attribute count, and validation status.
Why did my XML show a parser error?
Common causes include a missing closing tag, mismatched nesting, an extra XML declaration, invalid characters, or unescaped ampersands in text or attribute values.