Does this tool use eval() or execute my code?

Never. All JS minification is performed using safe static regex tokenization. Your code is never executed, evaluated, or sent to external servers.

How does JS minification improve web performance?

Minification slashes script download sizes and speeds up browser V8/SpiderMonkey compilation, directly improving Total Blocking Time (TBT) and Interaction to Next Paint (INP).

JavaScript Minifier – Minify JavaScript Online

Safely minify client-side JavaScript code. Strip inline & multi-line comments, optimize whitespace, and calculate estimated Gzip payload savings.

100% In-Browser Privacy: JavaScript code is processed statically in local memory. Never executed and never logged.

Zero Uploads

Upload .js File

Raw JavaScript Input 0 chars

Minified Output

Raw Size 0 B

Minified Size 0 B

Reduction 0%

Est. Gzip Payload 0 B

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