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Entwickler

JavaScript Minifier

Compact JavaScript by stripping comments and collapsing safe whitespace — with strings, template literals, and regex literals preserved exactly. Runs in your browser, no upload.

Tool-Zusammenfassung

Dieses Tool nimmt strukturierte Eingaben entgegen und liefert deterministische Ausgaben im Browser, ohne Server-Upload.

Tool-Name
JavaScript Minifier
Eingabe-Intention
Liefere Quellinhalte zum Umwandeln, Validieren oder Analysieren.
Ausgabe-Intention
Erhalte normalisierte Ausgabe, geeignet zum Kopieren, Wiederverwenden oder Debuggen.
Beispiel-Eingabe
// say hi function hi(name) { return `Hello, ${name}!`; }
Beispiel-Ausgabe
function hi(name){return `Hello, ${name}!`;}
Original242 B
Minified163 B
Saved79 B
Reduction32.6%
Strings, template literals, and regex are preserved exactly. No identifiers are renamed.

Tool-Einführung

Compact JavaScript by stripping comments and collapsing safe whitespace — with strings, template literals, and regex literals preserved exactly. Runs in your browser, no upload.

Tool-Überblick

This is a lightweight, conservative JavaScript minifier. It walks your source one token at a time, leaving every string, template literal, and regular expression untouched while removing line and block comments and shrinking runs of whitespace where it is safe to do so. It does not rename identifiers, shorten property accesses, or perform tree-shaking — for that you want a full bundler. What it does well is compressing snippets, examples, inline scripts, and configuration code without changing their behavior.

Anwendungsfälle

  • Inline a small snippet into HTML where every byte matters.
  • Quickly minify a code sample for a documentation page or blog post.
  • Pre-process configuration scripts before piping them into a CMS field.

Eingabe/Ausgabe-Beispiele

Eingabe-Intention
// say hi
function hi(name) {
  return `Hello, ${name}!`;
}
Ausgabe-Intention
function hi(name){return `Hello, ${name}!`;}

FAQ

Does it rename variables (mangle)?+
No. This is a whitespace-and-comments minifier only. For mangling, dead code elimination, and bundling, use a tool like esbuild, terser, or swc.
Will it break template literals or regex?+
No. The tokenizer recognizes ', ", `, /…/ and template ${} interpolation, and never modifies their contents.
Is automatic semicolon insertion (ASI) handled?+
The minifier preserves newlines that matter for ASI by inserting a single space rather than gluing tokens together where it cannot safely do so.

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