Free Security & Cryptography Tools
Generate strong passwords, compute MD5, SHA-1 and SHA-256 hashes with the Web Crypto API, decode JWT tokens to inspect their header and claims, and create bcrypt hashes for testing. These tools are built for developers who need quick answers during debugging, and they process secrets locally instead of sending them to a server.
Cryptographic Password Generator
Generate high-entropy, customizable passwords using Web Crypto API random values.
Multi-Algorithm Hash Generator (SHA-256, MD5, SHA-512)
Compute cryptographic message digests using SHA-1, SHA-256, SHA-512, and MD5 algorithms.
JSON Web Token (JWT) Decoder
Decode and view JSON Web Token headers, payload claims, and expiration timestamps.
Bcrypt Hash Generator & Verifier
Generate bcrypt password hashes and verify raw string matches against existing hashes.
Password Strength & Entropy Analyzer
Analyze password entropy, character diversity, and estimated brute-force crack time.
AES-256 Text Encryptor & Decryptor
Encrypt and decrypt text messages using AES-GCM 256-bit encryption and secret passphrases.