HelperCrate

Password Strength

See how long it would take to crack any password and what to improve.

Your files never leave your device. Everything runs in your browser.

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Password Generator

Create strong random passwords with full control over the character set.

JWT Decoder

Decode JSON Web Tokens to inspect their header, payload and expiry — entirely in your browser.

File Checksum

Hash any file with SHA-1, SHA-256, SHA-384 or SHA-512 using SubtleCrypto.

Text Encrypt / Decrypt

Encrypt or decrypt text with a passphrase using AES-GCM (PBKDF2 key derivation).