HTML Minifier: Compact Documents for Faster Page Loads
HTML whitespace is for human readability — browsers ignore it during parsing. Minifying HTML removes comments, collapses inter-tag whitespace, and tightens attribute syntax to reduce document size and improve Time to First Byte without changing how the page renders.
IE conditional comments (<!--[if ... -->) are preserved. Whitespace inside <pre> or <textarea> may be affected — review the output before deploying if those elements are present.
Impact on Inline Elements
For block-level elements (div, section, p), whitespace between tags has no visual effect — browsers discard it. For inline elements like span or img placed side-by-side, that whitespace creates a small visual gap. If your layout relies on inline-block elements with no gap between them, verify the minified output renders correctly.
HTML Comments Removed
HTML comments () are removed entirely. They contribute to document size without affecting the rendered page. Internet Explorer conditional comments (.Paste the HTML email template