HTML Minifier

Remove ordinary comments and collapse outside whitespace while protecting pre, textarea, script, and style blocks.

HTML

Minified HTML

0Input UTF-8 bytes

0Output UTF-8 bytes

0Bytes saved

0%Reduction

ReadyConservative local minification removes ordinary comments and collapses outside whitespace while protecting pre, textarea, script, and style blocks.

Source & result review

Inspect what the browser parsed and what the tool produced

DOMParser ≠ sanitizer

Ready to inspect source and result.

Review is local and detached: this panel never inserts pasted markup into the live page. A browser parser can normalize malformed HTML, but successful parsing does not make markup safe to inject. Scripts, inline event attributes and embedded browsing/plugin elements are reported as active-content signals, not executed.

Browser-local does not mean standards-complete

HTML parsing is error tolerant. Source diagnostics, sandboxed previews, and transformations do not replace full conformance, security, or production-browser testing.

Minification can change whitespace semantics

The native minifier protects pre, textarea, script and style blocks while reducing ordinary comments/whitespace. Review bytes and parsed output before replacing production source.

Parser and sanitizer boundary

HTML DOMParser creates a detached document and may repair or normalize markup. That is useful for inspection, but parsing alone does not sanitize untrusted HTML. Review scripts, inline event attributes, embedded content and application-specific URL/context rules before any live-DOM insertion.