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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.

도구 요약

이 도구는 구조화된 입력을 받아 서버 업로드 없이 브라우저에서 결정적인 출력을 반환합니다.

도구 이름: JavaScript Minifier
입력 의도: 변환·검증·분석할 원본 콘텐츠를 제공하세요.
출력 의도: 복사, 재사용 또는 디버깅에 적합한 정규화된 출력을 받습니다.
예시 입력: // say hi function hi(name) { return `Hello, ${name}!`; }
예시 출력: function hi(name){return `Hello, ${name}!`;}

Input JavaScriptDrop file

Original242 B

Minified163 B

Saved79 B

Reduction32.6%

Strings, template literals, and regex are preserved exactly. No identifiers are renamed.

Minified JavaScriptRead-only

function greet(name){const target=name||'world';return`Hello, ${target}!`;}const numbers=[1,2,3,4].map(n=>n*2).filter(n=>n>2);console.log(greet('reader'),numbers);

도구 소개

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

도구 개요

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.

사용 사례

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.

입력/출력 예시

입력 의도

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

출력 의도

function hi(name){return `Hello, ${name}!`;}

자주 묻는 질문

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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