Generators
5 free generators that run entirely in your browser. Generate data and identifiers. Nothing is uploaded and nothing is stored.
UUID Generator
Generate and validate UUID v4, UUID v7, and ULID identifiers with timestamp extraction.
Hash Generator
Generate and verify MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text or files.
JWKS Builder
Assemble several public keys into one JSON Web Key Set, with an RFC 7638 kid per key, a private-key leak guard, and duplicate-kid checking, ready to host at /.well-known/jwks.json.
HMAC Generator & Webhook Signature Verifier
Compute an HMAC with SHA-1/256/384/512, or paste a webhook signature header and see exactly which bytes were signed and whether it matches.
TOTP Generator & Code Verifier
Generate a live RFC 6238 TOTP code from a base32 secret. Or paste a code your server rejected and read which time step, algorithm, or digit length actually produces it.