Register-Based VM

Switch the VM to a register-based execution model for faster runtime, at the cost of a slightly larger bundle.

Async Executor

Run the VM asynchronously so the bytecode decryption key can be fetched at runtime instead of shipping in the bundle.

Targeting Functions

Selectively VM-obfuscate only sensitive functions for optimal performance.

Direct eval Behavior

Why direct eval() disables VM obfuscation, and how to avoid the pitfall.

Strict Mode Compatibility

Declare strict mode so the VM compiles correct bytecode.

VM Self Defending

Tamper detection, anti-hooking, and anti-agent protection for the VM runtime.

VM Debug Protection

Anti-debugging measures for VM-protected code.

VM Domain Lock

Restrict the obfuscated VM code to specific domains and sub-domains.

Browser Environment

Declare how your production build is served so the protected code can bind its integrity to it.

How VM Transforms Code

What the VM keeps visible vs. hides, and how to protect function names.

Using the NPM Package

Apply VM obfuscation from your build pipeline via the npm package.