HTML Minifier
Paste any HTML markup and get a tightly-packed, production-ready version. Whitespace between tags is collapsed, comments and DOCTYPE are normalised, and you can optionally minify embedded <script> and <style> blocks. Content inside <pre>, <textarea>, and <code> is preserved verbatim. Conservative — never rewrites identifiers in scripts. Runs entirely in your browser — your markup never leaves this page.
Privacy
Runs entirely in your browser — nothing is sent to any server.
Cost
Free. No sign-up, no watermark.
Type
Minifier
Related tools
Tools that work with the same formats — most users open one of these next.
URL Parser
Break a URL into its components — protocol, host, port, path, query parameters, hash — with each query param listed individually.
User-Agent Parser
Parse a browser User-Agent string into structured browser/engine/OS/device fields.
HTTP Status Code Lookup
Look up any HTTP status code — title, category, RFC explanation, and the situations it's actually used for.
MIME Type Lookup
Look up the MIME type for a file extension, or the canonical extensions for a MIME type — covering 100+ common types.
IPv4 Subnet Calculator
Calculate network/broadcast addresses, host range, mask, wildcard mask, host counts, and IP class from a CIDR.
CSS Minifier
Minify CSS — strip whitespace, comments and unused syntax to ship smaller stylesheets.
Frequently asked
Is HTML Minifier free to use?
Yes. HTML Minifier is completely free with no sign-up, no watermark, and no usage limits. Toolsly does not charge for any of its tools.
Do my files and data stay private?
Yes — HTML Minifier runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.
How does HTML Minifier work?
Open HTML Minifier, paste or fill in the input fields, and the result updates instantly. Everything runs in your browser — no upload, no waiting.
Which browsers does HTML Minifier support?
Any modern browser works — Chrome, Firefox, Safari, and Edge on desktop and mobile. HTML Minifier uses standard web APIs and does not require any plugin, extension, or sign-up.