Developer Security Tools
A suite of zero-knowledge cryptographic utilities built for developers. Generate keys, decode tokens, and test encryption logic entirely within your browser—no data ever leaves your device.
Secure JWT Decoder
Inspect and decode JSON Web Tokens locally without exposing session data to third-party servers.
AES-256-GCM Encryptor
Encrypt and decrypt sensitive text messages using military-grade AES-GCM cryptography.
RSA Key Generator
Generate 2048-bit and 4096-bit RSA public/private key pairs in PEM format instantly in your browser.
PBKDF2 Calculator
Generate derived keys using Password-Based Key Derivation Function 2 (PBKDF2) to test password stretching.
HMAC Generator
Calculate Hash-based Message Authentication Codes to securely verify webhooks and API payloads.
SHA Hash Generator
Compute secure cryptographic hashes including SHA-256 and SHA-512 instantly on your device.
Base64 Converter
Translate Base64 strings to raw ArrayBuffer and Hex formats for Web Crypto API compatibility.
Web Crypto API Checker
Run diagnostics to verify if your browser supports native, zero-knowledge cryptographic primitives.
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The Architecture of Zero-Knowledge
These individual tools represent the core cryptographic primitives that power the ZeroKey Vault. Here is how they combine to create a trustless, burn-after-reading delivery system.
1. Local Input
User types secret plaintext.
2. Web Crypto API
AES-GCM encryption & PBKDF2 stretching.
3. Base64 Transit
Key hidden in URL Fragment (#).
4. Supabase Wipe
Irreversible hard DELETE on read.