Crypto
Hashes, base64, JWT decode, and UUID generation.
14 tools
Compute SHA-1, SHA-256, SHA-384, or SHA-512 digests of text or file bytes.
Round-trip strings or binary blobs through base64 (standard or URL-safe) and hex.
Sign, verify, and decode JSON Web Tokens (HS256 / HS384 / HS512).
Cryptographically random UUIDs, opaque tokens, and human-friendly passwords.