OpenWebmasterby Mello Zone

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Make OpenWebmaster yours

Language, color, reading size, and motion stay on this device.

Inspect URLAdd website

Performance workflow · browser-local source optimization

Minify HTML, CSS, JavaScript, and JSON before release

Paste a real asset, choose the source type, and create a smaller deployable copy with transparent byte savings. OpenWebmaster keeps this local and separates text reduction from page-speed, cache, and ranking claims.

INPUT1,000,000 CHARSOUTPUTUTF-8PERFORMANCE SCORENOT CLAIMED
ASSET MINIFIER

Compress source text without uploading it

Use this for copied assets, embedded blocks, plugin output, or build-step verification. Run your normal tests before deploying any transformed file.

HTML preserves preformatted and textarea content. JavaScript minification is conservative: it removes comments and safe whitespace, but does not rename variables, transpile, bundle, or prove compatibility.

MIN

Ready for real source text.

No sample asset, compression score, Core Web Vitals result, cache verdict, ranking claim, or generated deployment advice appears before you supply code.

Release hygiene

Use minification as one part of a performance workflow

Pair it with resource inspection

Find large or blocking scripts and stylesheets first, then minify only the source you actually plan to ship.

Keep source maps and originals

Deploy minified assets from your build process, but keep readable source files for debugging, review, and rollback.

Verify cache and compression live

After deployment, inspect Cache-Control, validators, gzip or Brotli transfer behavior, and PageSpeed evidence separately.

Inspect page resourcesCheck cache headersRun PageSpeed evidence