Security Tools
Security tools for developers that run entirely in your browser. Generate v4 and v7 UUIDs in bulk, compute MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes and HMACs of text or files, and create or verify bcrypt password hashes with an adjustable cost factor. Your data stays on your device — nothing is ever sent to a server.
UUID Generator for v4 and v7 with Bulk Output
Generate v4 and v7 UUIDs in bulk and inspect any UUID or GUID
Hash Generator: MD5, SHA-256, SHA-512 and HMAC
Compute MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes and HMACs of text or files
Bcrypt Hash Generator and Verifier with Cost
Hash passwords with bcrypt at a chosen cost factor and verify passwords against bcrypt hashes
Password Generator with Passphrases and Entropy
Generate strong random passwords or word-based passphrases with an entropy meter
TOTP Generator with Countdown and otpauth URIs
Compute RFC 6238 TOTP codes from a base32 secret and build otpauth:// URIs for testing 2FA
Chmod Calculator for Octal and Symbolic Modes
Convert Linux permissions between checkboxes, octal (755) and symbolic (rwxr-xr-x) and build the chmod command
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