XML Formatter & Prettifier
Prettify and format messy XML documents with customizable indentation, or minify for production deployment with zero telemetry.
396 chars
459 chars
Valid XML
In-Browser XML Document Formatting and Validation
The XML Formatter restructures, beautifies, and validates raw XML documents, RSS feeds, SOAP messages, and SVG graphics. Manually inspecting single-line minified XML payloads from enterprise API integrations or web services is challenging without clear indentation.
This utility parses XML documents using native browser DOMParser APIs to construct a well-formed XML tree. It aligns closing tags, indents child elements with configurable spacing, preserves CDATA blocks, and handles XML prolog declarations (<?xml version="1.0" encoding="UTF-8"?>).
The formatter validates well-formedness, alerting users to unclosed elements, mismatched tags, and invalid attribute quotation. All formatting runs in client browser memory with zero network delay.
Core Tool Capabilities
- Well-Formed XML Validation: Validates XML document syntax and highlights parsing errors, unclosed tags, and mismatched element boundaries.
- Configurable Hierarchy Indentation: Choose between 2-space, 4-space, or tab indentation to organize nested element structures.
- CDATA and Comment Preservation: Preserves <![CDATA[...]]> literal blocks and XML comment structures without altering encapsulated data.
- SOAP and RSS Feed Support: Properly formats XML namespaces (xmlns:soap), RSS channel feeds, and SVG vector graphics.
Local Browser Privacy
Your files are processed locally on your device. Files are not uploaded, transmitted, or stored on remote servers.
Once the page has loaded, you can disconnect your network connection and continue using this tool offline.
Target Use Cases
- • SOAP Web Service Debugging
- • RSS and Sitemap Verification
- • SVG Vector Graphic Editing
- • Configuration File Inspection
Technical Specifications and Platform Limits
Strict compliance with official XML well-formedness specifications
Customizable spacing to match enterprise coding guidelines
Parses and serializes documents locally in browser RAM
Sensitive XML data feeds and enterprise payloads are never uploaded
Step-by-Step Workflow
Paste Raw XML Markup
Paste unformatted, single-line, or messy XML into the primary editor.
Select Indentation Spacing
Choose your desired indentation style: 2 spaces, 4 spaces, or standard tab characters.
Verify XML Well-Formedness
Inspect the live validation indicator to confirm all tags are properly closed and formatted.
Copy Formatted XML
Copy the cleanly indented XML document directly to your clipboard or download the file.
Practical Real-World Use Cases
SOAP Web Service Debugging
Enterprise backend engineers formatting single-line SOAP XML request and response envelopes for debugging.
RSS and Sitemap Verification
SEO specialists and webmasters beautifying XML sitemaps and RSS news feeds to inspect URL entries.
SVG Vector Graphic Editing
Designers and developers formatting raw SVG graphic files to inspect path definitions and coordinate data.
Configuration File Inspection
Java and Android developers formatting pom.xml and AndroidManifest.xml files during project reviews.
Frequently Asked Questions
- What makes an XML document well-formed?
- A well-formed XML document must have a single root element, properly nested matching tags, case-sensitive element names, and quoted attributes.
- Does this formatter preserve CDATA blocks?
- Yes. <![CDATA[...]]> sections are preserved intact without escaping or altering their internal text content.
- Can the tool format raw SVG files?
- Yes. SVG is an XML-based format and is formatted cleanly with proper element hierarchy.
- Are my XML data feeds or enterprise payloads uploaded to a server?
- No. All DOM parsing, validation, and formatting execute entirely inside your local browser memory.
- How does the tool alert me to XML syntax errors?
- The parser displays error banners highlighting the exact line number and tag name where parsing failed.
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Master this tool with Guides & Articles
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