XML Tools Online

A complete, privacy-first suite of XML utilities — format, pretty-print, parse, view, edit, minify, validate, escape and encode. Every tool runs entirely in your browser.

Reviewed by the CalcCafe editorial team · Last updated 1 July 2026 · How we test our tools

XML Formatter

Format and indent messy or minified XML into clean, readable markup.

XML Pretty Print

Pretty-print XML with clean indentation for easy reading.

XML Parser

Parse and validate XML, then format it — with clear error messages.

XML Viewer

Explore XML as a collapsible tree of elements and attributes.

XML Editor

Edit XML with live validation, formatting and minifying.

XML Minify

Compact XML by removing whitespace between elements.

XML Validator

Check whether XML is well-formed, with precise error messages.

XML Escape

Escape XML special characters so text is safe inside markup.

XML Unescape

Decode XML entities back to their original characters.

XML URL Encode

Percent-encode XML so it's safe in a URL or query string.

XML URL Decode

Decode percent-encoded XML back into readable markup.

Need to convert between formats? Try the XML ↔ JSON converter or the all-in-one Data Converter.

People also ask

Can I edit XML online?

Yes, the XML editor in this suite lets you paste or type XML and fix it in place, and the companion formatter, minifier, and validator tools finish the job, all without installing anything. Everything runs in your browser, so the document is never uploaded, which makes it safe for config files and API payloads. Copy the result back out when you are done.

What is the best free XML editor?

For quick edits and checks, a browser-based editor like the one here is the fastest because there is nothing to install and nothing leaves your machine. For larger projects, VS Code with an XML extension is a widely used free option that adds schema-aware completion and validation. Choose based on whether you need one-off cleanup or day-to-day editing with schema support.

How can I open an XML file online?

Open the file in a text editor, copy its contents, and paste them into the XML viewer or formatter on this page to see it indented and collapsible. Nothing is uploaded; the parsing happens in your browser. If the file is Base64-encoded, use the Base64 to XML tool first to recover the markup.

How to open XML in browser?

Drag the .xml file into a browser tab or press Ctrl+O (Cmd+O on Mac) and choose the file. Chrome, Firefox, and Edge display well-formed XML as a collapsible tree, and if the file is malformed they show a parse error with a line number. For a cleaner, copyable view, paste the contents into the formatter here.

Can you open XML in Chrome?

Yes, Chrome opens .xml files directly and renders them as a collapsible tree, usually with a note that the file has no style information associated with it, which is normal. If the XML is not well-formed, Chrome shows an error with the line and column instead. To format or edit the content rather than just view it, use the tools on this page.

What app opens XML?

Any text editor opens XML because it is plain text, and web browsers display it as a tree. Code editors such as VS Code add syntax highlighting and formatting, Excel can import simple data-style XML into a table, and the browser-based tools here let you format, validate, and minify without installing anything. The right app depends on whether you want to read, edit, or process the file.

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Sources & references

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