10 tools
Create and sign JWT tokens online with HS256 by entering a header, payload, and secret, then copy the generated token instantly.
Decode JWT tokens online, inspect header and payload claims, review expiry timestamps, and read signatures safely in your browser.
Hash passwords online with SHA-256, SHA-384, or SHA-512, add an optional salt, and inspect deterministic output directly in your browser.
Generate cryptographically secure random passwords with custom length and character sets. Free online password generator.
Check password strength online with entropy, crack-time estimates, and practical suggestions to improve weak passwords quickly.
Generate HMAC signatures online with SHA-256, SHA-384, or SHA-512 by entering a message and secret key directly in your browser.
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text instantly. Free online hash generator for developers.
Generate OAuth 2.0 PKCE code verifier, challenge (S256), and state.
Encrypt or decrypt text with AES-GCM 256 using a password-derived key (PBKDF2).
Generate RSA-OAEP keypairs (2048/3072/4096) as PEM, client-side.