Security tools
Generate strong passwords and secrets, check password strength, create TOTP codes, compute hashes and HMACs, and decode certificates — all locally in your browser. Secrets are never sent to a server or to analytics.
Password GeneratorCreate strong random passwords and passphrases with a strength estimate.
Password Strength CheckerSee how long a password would take to crack and how to make it stronger.
API Key & Token GeneratorGenerate secure random API keys, secrets and tokens in hex, Base64 or alphanumeric.
TOTP 2FA Code GeneratorGenerate and verify TOTP two-factor codes from a secret key, and create 2FA QR codes.
HMAC GeneratorCompute and verify HMAC-SHA256, SHA-1, SHA-384 and SHA-512 signatures.
Certificate DecoderDecode PEM SSL/TLS certificates and CSRs: subject, SANs, validity, key and fingerprints.
Hash GeneratorCreate SHA-256, SHA-512 and other hashes of text or files.