Minify XML by removing whitespace, or validate XML syntax. Paste your XML and choose an operation. Minify for transit or validate for correctness — free, local, no signup.
Content reviewed October 2026 · About Toolzum
Minify CSS by stripping whitespace, comments, and dead semicolons — smaller stylesheets instantly. Shrink a 50 KB file by 30% — local clean-css work, free, no signup.
Minify HTML by collapsing whitespace, stripping comments, and pruning optional tags. Slim landing pages for faster loads — local processing, free, no signup.
Beautify or minify HTML, CSS, JavaScript, XML, ERB, LESS, and SCSS with a single click. HTML, CSS, JS, XML, and more normalize in one pass — local processing, free, no signup.
Validate IBAN structure, length, and mod-97 check digits for 80+ countries. Catch transfer typos before money moves — local ibantools work, free, no signup.
Collapse messy whitespace into clean single-spaced text — extra spaces, line padding, and blank-line runs squashed. Fix copy-paste mess from PDFs and web — local cleaning, free, no signup.
Removes all unnecessary whitespace, line breaks, and indentation between elements and attributes. Comments and CDATA sections are preserved.
Yes. The validator checks for well-formed XML: proper tag nesting, closed elements, valid attribute syntax, and correct entity references.
Yes. Toggle between minification mode (reduce file size) and validation mode (check syntax) with a single click.
Yes. XML declarations (<?xml version='1.0'?>) and processing instructions are preserved during minification and validated for correct syntax.
No. All minification and validation happens locally in your browser. No XML data is transmitted to any server.
The browser DOMParser in text/xml mode: both Minify and Validate first look for a parsererror node, so broken XML reports Invalid XML instead of minifying. Successful Minify only collapses inter-tag gaps to >< plus trim; Validate answers Valid XML. A 2-mode toggle switches between them.
XML Formatter
Pretty-prints XML documents with proper tree indentation, validates structure, and reorganizes attributes for maximum readability.
GeoJSON Validator
Validate GeoJSON objects against the GeoJSON specification. Checks feature, geometry, point coordinates, FeatureCollection structure, and bounding box format.