XML Viewer Online - Open & Format XML | XML Viewer

Open XML files online, pretty print XML, and inspect structure in tree view. Free XML viewer and formatter with validation, private browser-based processing, and no upload required.

Paste XML or upload an .xml file to open it instantly in tree view, pretty print the markup, and validate structure directly in your browser without uploading your data.

Tree ViewFormat & Pretty PrintInstant ValidationNo Upload Required

XML Input

XML Viewer Online

Enter XML to view structure

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How to open and format XML online

Paste your XML code or upload a file.

Open the XML in an interactive tree view to inspect nodes and attributes.

Pretty print the XML, then copy or download the formatted result.

1. Paste or Upload XML

2. View XML Structure

3. Format & Export

Key Features

Tree View

Navigate complex XML structures quickly with a collapsible tree view.

Instant Validation

Catch invalid XML syntax immediately while you paste or edit.

No Upload Required

All processing happens locally in your browser and stays on your device.

Format & Pretty Print

Pretty print minified XML for cleaner structure and easier debugging.

Frequently Asked Questions

How can I open and view XML in a tree online?

Paste XML or upload an .xml file and the viewer renders a collapsible tree immediately. You can inspect nodes, attributes, and hierarchy, then switch to raw view or format the XML for easier reading.

Can I format XML online without uploading it?

Yes. XML parsing, formatting, and validation run locally in your browser, so your XML content is not uploaded to our servers.