Research & Release Notes

Anti-LLM JavaScript protection, written down.

Long-form articles on what AI assistants can and cannot do with obfuscated JavaScript, how Maximum-mode transforms hold up against modern reverse engineering, and how teams put protection into release workflows.

Open the Playground Maximum Mode Overview

JavaScript VM protection compared — Jscrambler, JSDefender, Verimatrix, OSS virtualizers

Vendor by vendor on JavaScript bytecode VM protection. What Jscrambler, PreEmptive JSDefender, Verimatrix Code Protection, Digital.ai Application Protection, and the open-source virtualizers actually ship. Where JSO’s selective per-function virtualization fits. Includes a budget-band decision framework.

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More research and roadmap

Newest first

Maximum Mode · VM Bytecode 2026-04-26 ~8 min read

VM-based protection in Maximum mode

JSO ships real bytecode virtualization in Maximum mode. Selected hot functions compile to opcodes; a per-build VM interpreter executes them at runtime. The design tradeoffs and why it’s opt-in per function rather than whole-bundle default.

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Anti-LLM Research 2026-04-25 ~9 min read

Can ChatGPT, Claude, or Copilot reverse-engineer obfuscated JavaScript?

A direct technical answer for 2026. What today’s AI assistants can actually deobfuscate, where they break down structurally, and why per-build polymorphic decoders defeat the pattern-matching approach LLMs rely on.