Encoder & Hash Tool

Base64, URL encoding/decoding, and cryptographic hashing — all client-side, nothing sent to servers

Base64

URL Encode

HTML Entities

Hash (SHA)

Hex / Binary

JWT Encode

Plain Text / Input

Base64 Output

URL-safe Base64

URL-safe variant will appear here…

Input

URL Encoded

URL Decoded

encodeURIComponent (strict)

Plain Text / HTML

HTML Entities Encoded

Decoded (Entities → Text)

Uses the Web Crypto API — fully client-side, no data leaves your browser.

Input Text

SHA-1

—

SHA-256

—

SHA-384

—

SHA-512

—

Input Text

Hexadecimal

Binary

Octal

Generates a signed JWT using HMAC-SHA256. For demonstration — do not use this secret in production.

Header (JSON)

Payload (JSON)

Secret Key

Generated Token

Need help securing data encoding and cryptography in your applications?