Online MD5 hash generator: enter text to get a 32-character MD5 hash. Computed locally in browser, data never sent.

Online hash calculator: SHA-1, SHA-256, SHA-384, SHA-512. Powered by Web Crypto API, computed locally in browser.

Free online hash verifier tool. Supports MD5/SHA1/SHA256/SHA512 algorithms, text and file hash computation, one-click expected value comparison.

Free online HMAC hash generator supporting MD5, SHA1, SHA256, SHA384, and SHA512 algorithms with Hex and Base64 output.

Online AES-GCM encryption tool: PBKDF2 key derivation 256-bit. Processed locally in browser, ciphertext and password never sent.

Free online RSA encryption and decryption tool. Supports 1024/2048/4096 bit key generation, public key encryption and private key decryption.

Free online PGP encryption/decryption tool based on RSA + AES hybrid encryption, with key pair generation support.

Online Bcrypt password hashing tool: generate password hashes and verify passwords against hashes. Adjustable salt rounds, essential for authentication development.

Online JWT (JSON Web Token) decoder with HS256 signature verification. View Header, Payload, and Signature segments. Decoded locally in your browser, token never sent to server.

Free online JWT generator with HS256 signature algorithm. Custom Header and Payload, quickly generate test tokens.

Free online TOTP verification code generator, similar to Google Authenticator, with multi-secret management.

Free online X.509 certificate decoder. Paste a PEM certificate to view Subject, Issuer, validity period, public key algorithm, fingerprint, and more.

Online secure password generator: customizable length, uppercase, lowercase, numbers, symbols. Uses crypto.getRandomValues for true randomness. Generated locally, never stored.

Free online password strength checker that evaluates password security, provides improvement suggestions, and estimates crack time.