XML Formatter

Free online xml formatter — making machine-generated XML human-readable.

100% Private — Runs entirely in browserInstant calculation & resultFree, no sign-up

Why format XML code with ToolJiffy XML Formatter?

XML (Extensible Markup Language) is widely used for API data transmission (SOAP, REST), sitemaps (sitemap.xml), RSS feeds, SVG vector graphics, and configuration files. Machine-generated XML is often minified into a single unreadable line without indentation. ToolJiffy XML Formatter beautifies and indents XML code instantly in your browser.

  • Customizable XML Indentation: Format XML with 2-space, 4-space, or tab indentation modes.
  • XML DOM Syntax Validation: Detects unclosed tags, malformed attributes, and invalid XML declarations with line-numbered error reports.
  • CDATA & Comment Block Preservation: Preserves raw CDATA blocks and XML comments without altering data content.
  • 100% On-Device Browser Security: Formats XML locally in browser memory without sending payloads to cloud servers.

Browser-native XML DOM parsing & beautification engine

ToolJiffy's XML formatter utilizes the browser's native DOMParser API. It constructs an in-memory XML DOM tree, formats node hierarchies, and serializes clean XML code.

Whether inspecting SOAP web service responses, debugging RSS feed structures, formatting SVG graphic code, or cleaning up sitemaps, instant XML formatting improves code readability.

Client-side security for private XML payloads

Formatting enterprise XML data feeds, proprietary SOAP payloads, or client sitemaps should never require sending data to remote third-party servers.

ToolJiffy operates on a zero-cloud architecture. All XML formatting runs 100% locally in your browser tab. Your XML data never leaves your device.

Step-by-step guide to formatting XML code

  1. Paste XML code: Copy your minified or unformatted XML string into the editor panel above.
  2. Format XML: Click Format XML to apply clean tag indentation and attribute alignment.
  3. Copy or download XML: Click Copy Code or Download XML to save your formatted file.

Frequently asked questions

How does the XML Formatter work in browser memory?

ToolJiffy parses unformatted or minified XML strings using an in-memory XML DOM parser, re-indenting tags, attributes, and text nodes with customizable 2-space or 4-space indentation.

What XML features are validated during formatting?

Validates tag opening/closing matching, self-closing tags (<img />), attribute quoting, CDATA blocks (<![CDATA[...]]>), XML declarations, and comments.

Can I format XML Sitemaps and RSS feed files?

Yes! Format `sitemap.xml` files, RSS/Atom feeds, SOAP API responses, SVG graphics code, and Android layout XML files.

Is my XML payload uploaded to any cloud server?

No, 100% private. All XML parsing and indentation logic execute locally inside your browser memory. Your XML data never leaves your computer.

How does XML formatting handle CDATA and comment blocks?

Preserves CDATA text sections and comment blocks without breaking raw data or escaping characters.

Can I collapse or minify formatted XML code back?

Yes! Use the companion XML Minifier tool to collapse formatted XML into a compact single-line payload.

Does ToolJiffy highlight XML syntax errors?

Yes! Unmatched tags or malformed attributes trigger line-numbered XML parse error messages.

Is ToolJiffy XML Formatter free without limits?

Yes! ToolJiffy is 100% free with unlimited usages, zero account sign-ups, and zero watermarks.

Explore related developer tools

Minify XML with XML Minifier, validate XML using XML Validator, convert XML to JSON with XML to JSON Converter, or format HTML using HTML Formatter.

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