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XML Formatter

Format XML data schemas with pretty-printed hierarchies.

Interactive Online Utility

XML Formatter runs 100% locally in your browser sandbox with zero network roundtrips. Load or paste your code directly into the workspace above to format, parse, validate, or generate your output instantly. 

<note><to>Tove</to><from>Jani</from><heading>Reminder</heading><body>Don't forget me this weekend!</body></note>
PRO TIP Local Client-Side Processing

Otuls runs 100% locally in your browser. Your data is processed in-memory and never transmitted over external network connections.

Technical Guide & Overview

XML Formatter is a dedicated developer utility designed to streamline common workflow tasks with zero installation, instant execution, and complete data privacy.

How It Works Under the Hood

The tool leverages modern browser standards (HTML5, WebAssembly, WebGL, and modern ECMAScript) to execute complex computations directly on your local device CPU and GPU without offloading processing to third-party cloud servers.

Authoritative Specifications & Primary Standards

Official specifications, RFCs, and authoritative open-source repositories for XML Formatter:

W3C Standard

Official standard specifying the syntax of well-formed XML documents.

GitHub Repository

The foundational open-source C library providing the xmllint formatting utility.

Zero-Knowledge Client-Side Sandboxing

Privacy First: This tool operates completely inside your browser with zero remote logging or tracking.