online XML formatter
Format and compress XML
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Quick start: XML Formatter in 3 steps
- Paste or type your input into the XML Formatter input area on this page
- Review the formatted, decoded, or validated output instantly in the browser
- Copy the result or open a related tool (Diff, Encoder, etc.) from the links below
About XML Formatter
The XML Formatter is an online tool for processing XML (Extensible Markup Language) data. As a classic markup language, XML is widely used in legacy system interfaces, configuration files, data exchange, document storage and message transmission. Similar to HTML, it organizes data with nested tags. Raw XML is usually compressed into a single line or written with chaotic hierarchy, which makes manual reading, node searching and error troubleshooting difficult, especially for deeply nested tags. This tool runs in browsers without client installation, providing XML formatting, compression, syntax validation and node folding functions. It automatically adds standard indents and line breaks to display parent-child tag relationships clearly, and locates syntax errors such as unclosed tags and missing quotes. It supports ultra-long XML messages and multi-level nested documents, and works with different encodings to meet data parsing and debugging needs.
How XML Formatter works
XML is still widely used in traditional industries and legacy projects for data exchange and configuration storage. However, nested tags make disorganized XML documents hard to process. Compressed single-line XML often contains thousands of characters, and it is impossible to distinguish tag levels manually. Common syntax errors like unclosed tags and missing quotes also take a lot of time to troubleshoot manually.
Traditional XML processing relies on professional editors and plugins, which require installation and environment configuration. Many tools perform poorly on large XML files and use inconsistent formatting rules. Command-line tools have a high learning threshold and are not accessible for non-technical users. Launching professional tools for temporary message checking greatly reduces work efficiency.
Why use XML Formatter on WoDeTool
WoDeTool bundles XML Formatter with 50+ related utilities, smart clipboard detection, and one-click tool pipelines — so you can format JSON, decode JWT, and diff payloads without switching tabs or installing CLI tools.
Use Smart Clipboard on the home page to auto-detect pasted JSON, Base64, or JWT and jump to XML Formatter. Save a tool pipeline to chain XML Formatter with related utilities. Read our guides for real-world workflows.
Common use cases
- •Legacy Interface Debugging: Format XML messages returned by traditional and third-party interfaces to view structure and data, and locate interaction errors.
- •Config File Editing: Edit XML configuration files for software and servers, sort out configuration items after formatting, and prevent service startup failures caused by tag errors.
- •Message Analysis: Analyze fields and verify integrity of business messages transmitted in XML in finance and government industries.
Frequently asked questions
- Is XML Formatter free to use?
- Yes. XML Formatter on WoDeTool is completely free with no sign-up required. Open the page and start using it immediately.
- Can I use XML Formatter for legacy interface debugging?
- Format XML messages returned by traditional and third-party interfaces to view structure and data, and locate interaction errors.
- Can I use XML Formatter for config file editing?
- Edit XML configuration files for software and servers, sort out configuration items after formatting, and prevent service startup failures caused by tag errors.
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