JS-Confuser is an active JavaScript obfuscation tool designed to make code difficult to read and analyze, thereby protecting intellectual property and deterring reverse engineering. The current stable version is 2.0.1, which builds upon a significant 2.0.0 rewrite implemented with Babel, introducing a revamped API and enhanced obfuscation capabilities. The project maintains an active release cadence with frequent updates, bug fixes, and feature additions across minor and patch versions. Key differentiators include robust control flow obfuscation, advanced string concealing with randomized charsets, anti-tampering protection against runtime modifications, and anti-tooling measures designed to defeat common deobfuscators. It also offers features like variable renaming, function obfuscation, and integrity checks to detect unauthorized source code changes. The primary API, `obfuscate()`, is promise-based and returns an object containing the obfuscated code.
npm install js-confuserVerified import paths — ran on the pinned version, not inferred.
Demonstrates how to import and use the promise-based `obfuscate` function with a simple code snippet, showcasing a typical configuration and how to access the resulting obfuscated code from the resolved object.
Update your code to correctly handle the Promise and access the `code` property. Use `const { code } = await obfuscate(...)` or `obfuscate(...).then(result => result.code)`.If preserving `Function.prototype.length` is essential for your application's functionality, explicitly set `preserveFunctionLength: true` in your obfuscation options.
Always ensure the `target` option accurately matches the environment where your obfuscated code will be executed. Review the generated code if you encounter runtime parsing or execution errors.
Carefully balance obfuscation strength with performance requirements. Conduct thorough testing with different presets and options to find an optimal configuration for your specific application without introducing unacceptable overhead.
It is strongly recommended to disable `Tamper Protection`, `selfDefending`, and similar high-security features during development and debugging phases. Only enable them for production builds after extensive testing.
For ESM projects, use `import { obfuscate } from 'js-confuser';`. For CommonJS, use `const JsConfuser = require('js-confuser');` and then call `JsConfuser.obfuscate(...)`.Ensure you `await` the `obfuscate` function or chain a `.then()` call, then access `result.code`. Example: `const { code } = await obfuscate(...);` or `obfuscate(...).then(result => console.log(result.code));`Change your import statement to use ESM syntax: `import { obfuscate } from 'js-confuser';`. If you must use CommonJS in an ESM project, consider using dynamic `import()` or configuring your build tool accordingly.Verify that the `target` option (e.g., 'es5', 'browser', 'node') matches the environment where the obfuscated code will run. If using modern JavaScript features in your input, consider setting `es5: true` in options if targeting older runtimes, or ensure your target environment supports the generated syntax.
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