Encoding & Crypto Utilities
Decode tokens, convert encodings and compute local hashes
Client-side JWT inspector, Base64 converter, URL encoding, and Web Crypto cryptographic hash generators. Every utility listed below operates strictly inside your browser sandbox. Confidential tokens, schemas, and source code are never uploaded or tracked.
Available Tools in Encoding & Crypto (5)
Base64 Encoder & Decoder
Encode and decode text, hex, URL-safe Base64, and convert images/files to Data URIs.
JWT Decoder & Inspector
Decode and inspect JSON Web Tokens (Header, Payload, Claims, Expiration) with client-side verification.
URL Encoder & Decoder
Encode and decode URLs, query parameters, and reserved characters with RFC 3986 compliance.
Cryptographic Hash & Checksum Generator
Generate SHA-256, SHA-512, SHA-1, MD5, and HMAC hashes locally using Web Crypto API.
HTML Entity Encoder & Decoder
Encode special characters into HTML entities and decode HTML entities to plain text.