Generate one or more version 4 (random) UUIDs.
Every UUID generated here is version 4 — fully random, not derived from your device, timestamp, or MAC address.
Both will generate a hash from your input. Only one of them should be anywhere near anything security-related in 2026.
API responses and minified config files often come back as one unreadable line. Here's what's actually wrong with it and how formatting fixes it.
JSON Web Tokens look like gibberish, but they're just Base64-encoded JSON with a signature stapled on. Here's what each part means and how to verify one.