Security & Crypto
6 security and cryptography tools for developers. Debug and verify JWT tokens, generate MD5/SHA hashes, create cryptographically secure passwords, generate SSH key pairs, encrypt and decrypt text with AES/DES/RC4, and calculate file checksums. All cryptographic operations run entirely in your browser — your data never leaves your device.
JWT
Encode, decode, and verify JSON Web Tokens (JWT). Supports HS256, RS256, ES256, PS256 and more algorithms.
Text Hashing
Generate MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, SHA3, and RIPEMD-160 hashes with HMAC support.
Password Generator
Generate cryptographically secure passwords and check password strength instantly. Customizable options with real-time analysis.
SSH Key Generator
Generate SSH key pairs (RSA, Ed25519) entirely in your browser. Supports passphrase encryption, fingerprint display, and public key inspection.
HD Wallet
Generate BIP39 mnemonic phrases and derive cryptocurrency addresses for EVM, Bitcoin, Solana, Tron, and Cosmos chains. Free online HD wallet tool — 100% client-side.
Text Encrypt/Decrypt
Encrypt and decrypt text using AES, DES, Triple DES, Rabbit, RC4, and RC4Drop with configurable block modes.
File Checksum
Calculate MD5, SHA-1, SHA-256, and SHA-512 checksums for any file. Supports unlimited file size.