Client-side developer tools

Encoding

Base64Unicode-safe, base64url URLcomponent vs URL, + vs space JWTHeader + payload, no verification

Format & Convert

JSONWarns on big-int loss, dup keys TimestampSeconds vs ms, ISO 8601, UTC DiffLine diff, unified output

Generate

UUIDcrypto-random, bulk up to 100 HashSHA-256/512, no MD5 by design

Directory

LinksCurated external tools, references and AI assistants