lukevm — JavaScript workbench

Profile Target Seed

Live build

source.js Source sent to API

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obfuscated.js

Waiting for source

Build JavaScript to inspect its function coverage.

Build settings

Hardened

Runtime integrity and browser environment locking.

Profile defaults

Virtualize functions String array Hide property names Minify & mangle

Function protection

Use one exact function path per line. Required functions must compile; conflicts fail the build. Inspect each decision in the Functions report.

Other functions Required functions Keep native

Changing profiles preserves controls you have edited. Click a function’s policy badge to see its exact path and protection reason.

Transforms

Encoding String threshold VM threshold Interpreters Capture closures Rotate array Numbers to expressions IIFE wrap Mangle top-level

Runtime integrity

Environment lock Override key Inspector lock Decoy constants Source integrity (self-hash) Private runtime Browser protection (opt-in) Detect browser inspector Extra protection coverage (%) Hot native islands (%)

Enabled extra protections automatically target decision-heavy functions within this code budget. Other functions retain baseline protection. No function names needed. Whole-function selection can exceed small targets; 100% selects all eligible functions.

Execution history (higher runtime cost) Split constants and local values Integer arithmetic transformations Flatten eligible branches and loops Debugger and timing tripwires (strict browser)

Execution history, split values, arithmetic transformations and flattening can substantially slow protected code. Automatic selection limits their coverage; measure your workload to confirm the runtime cost. Browser setup checks remain shared.

Output & debug

Dead-code injection Total output target (KiB) Debug crash reports

Dead-code injection is opt-in and needs at least one virtualized function. The target includes the application and runtime.

Live builds send your source to the hosted API. Use the CLI to keep source local.