Security & Privacy Tools

Generate cryptographically secure passwords with custom settings

Check password strength with entropy and crack time estimation

Generate MD5, SHA-1, SHA-256, SHA-512 hashes client-side

Decode JSON Web Tokens with header, payload, signature view

Generate JWT tokens with custom claims and algorithm support

Full JWT debugging with encoding, decoding, and verification

Generate UUID v4 tokens in bulk with format options

Generate Content Security Policy headers for web security

Visual Unix permission calculator with octal and symbolic notation

Encrypt and decrypt text with AES-256-GCM using PBKDF2 key derivation

Compute MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of files or text

Audit HTTP security headers against best practices — HSTS, CSP, X-Frame-Options and more, with an instant security grade.

Generate SHA-256/384/512 Subresource Integrity hashes and build script/link tags with the integrity attribute.

Score any password from 0-100 with entropy in bits, crack-time estimates for offline and online attacks, and a secure random password generator.

Generate bcrypt password hashes with cost factor control — full blowfish implementation, salt generation and hash verification, entirely client-side.

Generate time-based one-time passwords (TOTP) from a secret — RFC 6238 with 30-second windows and authenticator-style counter.

Generate random one-time passwords in configurable lengths — numeric or alphanumeric, batch mode and copy.

Generate RSA key pairs with selectable bit sizes using the Web Crypto API — export PEM public and private keys.

Generate secure diceware-style passphrases from a 7,776-word list — configurable word count, separators and entropy display.

Generate random numeric PINs in any length — bulk mode, no repeated digits and easy-to-remember options.