Announcing AfterPack — JavaScript Obfuscation for the AI Era
Today I'm launching AfterPack — a Rust-based JavaScript obfuscator designed for the AI era. The waitlist is now open.
Why I Built This
I've spent years protecting web assets through DataUnlocker, watching how the landscape of code protection has fundamentally shifted. The rise of LLMs like GPT-4 and Claude changed everything — these models can now explain minified code in seconds, turning traditional obfuscation into security theater.
The uncomfortable truth: your source code ships with every deployment. Competitors can read it. AI crawlers index it. Reverse engineers unpack it. Legacy obfuscators use predictable patterns that automated tools unravel without breaking a sweat.
What AfterPack Does Differently
AfterPack uses polymorphic transformations that resist pattern recognition — both human and AI. In early tests against GPT-4, protected code produced mostly hallucinations rather than accurate explanations.
Key technical decisions:
- Rust core — transforms complete in milliseconds, not minutes
- No eval() — works with strict Content Security Policies
- Edge-compatible — runs on Cloudflare Workers, Vercel Edge, Deno Deploy
- Source maps included — debugging your own code shouldn't be painful
Framework Support
AfterPack auto-detects and configures for modern frameworks: Next.js, Vite, Astro, and Remix. Zero configuration needed — just run npx afterpack after your build, or use native plugins.
Free and Pro Tiers
The CLI and framework plugins are open source under Apache-2.0, and the local engine is free to use. The free tier includes:
- Unlimited builds
- Variable renaming, control flow flattening, string encoding
- Framework presets and deterministic builds for CI
Pro ($49+/month) is planned to add cross-module obfuscation, FlowMorph transforms that make deobfuscation far harder, browser API locking, and encrypted source map storage.
Join the Waitlist
Early access members get founding member pricing and direct input on the roadmap.
Ship software. Not source.
Links
- AfterPack Announcement
- AfterPack Website
- DataUnlocker — my other web asset protection project