Encoding & Security
Encode parameters, decode tokens, and calculate cryptographic checksums. Clean, local browser utilities with zero data transmission.
Data integrity and transmission security require encoding and hashing operations. Web environments require percent-encoding parameters inside URLs, APIs wrap authorization details inside JSON Web Tokens (JWT), and databases store passwords as cryptographic digests. The tools below help inspect, convert, and hash text strings safely and locally in your browser.
Base64 Encoder / Decoder →
Convert binary payloads and unicode strings to safe Base64 format or decode them back to plain text.
URL Encoder / Decoder →
Percent-encode query string parameters or decode URLs containing special characters.
JWT Decoder Online →
Extract and inspect the header, payload claims, and expiration date of JSON Web Tokens.
SHA-256 & MD5 Hash Generator →
Compute secure SHA-256, SHA-512, SHA-1, or MD5 cryptographic hashes from input strings.