XML Formatter & Validator – Free Online Tool | Trencada
Format, beautify, minify, and validate XML instantly in your browser — free, no signup.
Tool Interface
Paste your XML to validate, format (pretty print), or minify it — free, instant, no signup. All processing happens in your browser.
How to use
- Paste your XML into the box (or click Sample to try it).
- Click Format to pretty-print it with indentation, or Minify to compress it to one line.
- Click Validate to check it is well-formed XML — errors are shown with details.
- Copy or Download the result.
- Choose 2 spaces, 4 spaces, or tab indentation.
- Your XML never leaves your browser — nothing is uploaded.
100% private — all processing happens in your browser.
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About This Tool
Introduction
The Trencada XML Formatter & Validator beautifies, minifies, and validates your XML in one place. Paste in messy, minified, or hand-written XML and get clean, properly indented output in one click — or catch mismatched tags, unclosed elements, and syntax errors before they break your code.
How to Use
- Paste your XML into the input box — or press Sample to load an example document.
- Choose your indentation (2 spaces, 4 spaces, or a tab) from the dropdown.
- Press Format to pretty-print, Minify to compress to one line, or Validate to check well-formedness with detailed error messages.
- Copy the result or Download it as formatted.xml.
Key Features
- Pretty-print: clean output with 2-space, 4-space, or tab indentation.
- One-click minify: compress XML to a single line for storage or transfer.
- Strict validation: well-formedness checks with detailed error messages.
- Live stats: character, line, element, and root-tag counts.
- Sample XML included: try the tool instantly with one click.
- 100% private: parsing happens in your browser — nothing is uploaded.
- Free forever: no signup, no account, no tracking.
Why Choose Trencada
Trencada's developer tools are free forever with no account and no tracking, and they work on phone, tablet, and desktop. Keep your data formats tidy with the JSON Formatter for JSON files, the HTML Formatter for markup, or the YAML to JSON converter for configuration files.
FAQ
Is it free? Yes — all Trencada tools are free with no signup.
Does my XML leave my browser? No — validation and formatting run entirely on your device.
What happens on invalid XML? The validator shows the error with details so you can fix it.
Can I download the result? Yes — Copy or Download as a .xml file (saved as formatted.xml).
What indentation options are available? You can format with 2 spaces, 4 spaces, or a tab character — pick whichever matches your team's style.