Security
Certified Utility Suite
Access our specialized collection of security. Built for security and performance, these tools process all data locally.
JWT Decoder
Decode JWT header and payload online — inspect claims, expirations, and algorithms in your browser.
Password Generator
Create highly secure, random, or memorable passwords and PINs with customizable entropy settings.
SHA-256 Generator
Generate SHA-256 hash online — text or file, plus HMAC-SHA256. One-way hash, not encryption.
UUID Generator
Generate cryptographically secure Version 4 UUIDs (GUIDs) in bulk for software development and database keys.
Security FAQ
How random is the UUID generator?
We use the browser's hardware-level entropy source, ensuring that every UUID is unique across the global namespace.
Why generate passwords locally?
Online generators that send data to a server can log your passwords. Our local generation ensures the password only ever exists in your device's RAM.
What is the difference between UUID v1 and v4?
v1 is based on time and MAC addresses, while v4 is entirely random. We default to v4 for maximum privacy.