Frontend code that nobody can read.
Compile your client side JavaScript into Rust WASM with AES-256-GCM encryption, X25519 ephemeral keys per session, and hardware-fingerprint pinning. Three lines of integration. Zero source visible in DevTools. Ever.
Your frontend is already public.
Open DevTools on any website. Hit Sources. Every line of your client side code is right there. Every API key. Every endpoint. Every business rule. Obfuscation is a speed bump, not a wall.
What you ship today
- JavaScript source is always visible in DevTools
- Obfuscation reverses in minutes with automated tools
- API keys, auth flows, and business logic fully exposed
- Competitors clone proprietary algorithms overnight
- HMAC signatures harvested by anyone with a browser
- Network tab exposes every endpoint, header, and payload
- Browser fingerprinting trivially spoofed from the JS side
What Shield ships
- Protected code compiled into a Rust WebAssembly module
- X25519 key exchange + AES-256-GCM inside WASM
- Browser fingerprinting and domain-locked sessions
- Nothing in DevTools - no source, no network keys, no logic
- Per-request HMAC signing automatically intercepted
- Decrypted only inside the WASM sandbox, never as a file
- Endpoint discovery useless without valid session credentials
Four steps. Zero exposure.
Shield doesn't hide your code - it compiles it into a Rust-based WebAssembly module where all cryptographic operations happen in an isolated sandbox. There is nothing to inspect, nothing to intercept, and nothing to reverse engineer.
The compiled Rust module generates an ephemeral X25519 keypair, fingerprints the browser at the hardware level, and sends an encrypted auth request to your server. The keypair never leaves the WASM sandbox.
Your server verifies the browser fingerprint, checks the requesting domain against your whitelist, and validates the cryptographic proof. If everything checks out, it responds with an encrypted session key and content decryption key using the ephemeral public key.
The encrypted bundle containing your JavaScript and CSS is fetched and decrypted entirely inside the WASM module using AES-256-GCM. JS and CSS are injected directly into the DOM - never visible as source, never in the Sources tab, never intercepted by network inspection.
Shield monkey-patches the global fetch function. Every outgoing request from your protected code is automatically intercepted and signed with session bound HMAC proofs that your server can verify. No valid signature, no response.
Built for enterprise. By the numbers.
Shield isn't a wrapper around existing tools. It's a ground-up Rust + WebAssembly security system with no JavaScript-side attack surface.
What Shield protects.
Your Source Code
- JavaScript and CSS encrypted at rest and in transit
- Decrypted only inside the WASM sandbox - never as a file
- Proprietary algorithms, UI logic, and business rules stay private
Your API Endpoints
- Every request signed with session-bound HMAC proofs
- Replay attacks blocked - signatures are timestamp-bound
- Endpoint discovery useless without valid session credentials
Your Users
- Browser fingerprinting prevents session hijacking
- Domain locking prevents phishing with cloned frontends
- Rate limiting and IP tracking built into every session
Your Revenue
- Competitors cannot clone your proprietary frontend
- API abuse blocked at the cryptographic level
- Scraping and automation stopped by fingerprint verification
Who is Shield for?
SaaS Companies
Protect proprietary UI logic, prevent feature cloning, and secure API integrations that competitors would otherwise reverse-engineer in hours.
FinTech & Banking
Lock down payment flows, transaction signing, and sensitive financial logic. Compliance teams will love that nothing is exposed client-side.
E-Commerce
Prevent price scraping, cart manipulation, and coupon abuse. Protect checkout flows and dynamic pricing algorithms.
Healthcare & Gov
Meet security requirements for handling sensitive data in the browser. No client-side keys, no exposed PHI processing logic.
Stop shipping your source.
Three lines of integration. Three minutes to deploy. Forever invisible to DevTools.