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Minify JavaScript with Terser.
Paste JavaScript and get a minified version using Terser — whitespace and comments removed and names shortened where safe. See the size you save. Everything runs in your browser.
Runs entirely in your browser — nothing is uploaded.
No — minification runs entirely in your browser with the Terser library; your code never leaves your device.
Terser reports it — fix the syntax and the minified output appears automatically.