js-virtualizer

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library 1.0.2 ·javascript
verified May 1, 2026

A proof-of-concept JavaScript obfuscation tool that converts individual functions into bytecode executed by a custom virtual machine (VM) written in JavaScript. Version 1.0.2 is the current and only release. The transpiler converts functions marked with `// @virtualize` into opcodes for the VM. Key differentiators: unlike traditional obfuscators that rename/transform AST, this executes code in an interpreted VM, making reverse engineering significantly harder. Not intended for whole programs due to performance overhead; targets server-side Node.js, not browsers. Development appears stalled (no updates since initial release).

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