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JavaScript Obfuscator — Free Browser-Based JS Code Protection

Obfuscate JavaScript with control-flow flattening, string array, dead-code injection and identifier mangling. Three presets, runs in your browser.

Miễn phí Không cần đăng ký Chạy trên trình duyệt Tôn trọng riêng tư Updated
Preset

Working…

Cách dùng

  1. 1 Paste your JavaScript source on the left.
  2. 2 Pick a preset — low (light mangling), medium (default), high (control flow + dead code).
  3. 3 Click Obfuscate. Copy or download the result.

Vì sao dùng công cụ này

  • Powered by javascript-obfuscator, the open-source library used by many SaaS builders.
  • Library is lazy-loaded — the page is light until you click Obfuscate.
  • Three preset profiles and fine-grained toggles for individual passes.
  • Pure client-side — your source code never leaves the browser.

Câu hỏi thường gặp

Is obfuscated code unreadable?

It is much harder to read but never impossible — determined attackers can still reverse it. Use obfuscation in combination with proper licensing, server-side validation, and minification.

Want minified output instead?

Try the <a class="underline" href="/javascript-minifier">JavaScript Minifier</a> — same lazy-loading pattern, faster output, no name mangling beyond shortening.

Need to format obfuscated code?

Use the <a class="underline" href="/javascript-formatter">JavaScript Formatter</a> to pretty-print and inspect the structure.

JavaScript Obfuscator là gì?

A JavaScript Obfuscator is a tool that transforms JavaScript source into a functionally equivalent but harder-to-read form. It applies techniques such as control-flow flattening, string array extraction, dead-code injection, and identifier mangling, and offers three presets. It runs entirely in the browser, so source code is processed client-side and never uploaded to a server.

Tóm tắt

JavaScript Obfuscator là công cụ lập trình miễn phí của Zerethon Tools. Obfuscate JavaScript with control-flow flattening, string array, dead-code injection and identifier mangling. Three presets, runs in your browser. Chạy hoàn toàn trong trình duyệt — không đăng ký, không tải lên.

Danh mục
Lập trình
Giá
Miễn phí
Quyền riêng tư
Chạy trên trình duyệt
Đăng ký
Không cần

Quyền riêng tư

Dữ liệu của bạn không bao giờ rời khỏi trình duyệt trừ khi được nêu rõ. JavaScript Obfuscator chạy hoàn toàn phía client — không tải lên máy chủ, không ghi log, không theo dõi dữ liệu bạn nhập.

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