Base64, URL, Hex & Crypto Hash Suite

Encode, decode, and hash strings in real-time. Supports Base64 / Base64URL, URL Percent-Encoding, Hexadecimal, SHA-256, SHA-512, and HMAC. Pure Web Crypto API in your browser with zero server transmission.

RAW TEXT (UTF-8) 56 chars

OwlTheEngineer 🦉 — High Performance Developer Utilities

BASE64 / BASE64URL OUTPUT

Standard URL-Safe

T3dsVGhlRW5naW5lZXIg8J+miSDigJQgSGlnaCBQZXJmb3JtYW5jZSBEZXZlbG9wZXIgVXRpbGl0aWVz

Encoding vs Encryption vs Hashing

Encoding (Base64, URL, Hex): Reversible data representation designed for safe network transit. Zero secret keys.
Hashing (SHA-256, SHA-512): One-way cryptographic digest. Identical inputs always produce the exact same fixed-length hash; impossible to reverse mathematically.
HMAC (Hash-based Message Authentication Code): Combines a cryptographic hash function with a secret key to verify data integrity and authenticity (e.g. webhooks, API request signing).