Cryptography Tools
Local browser-based utilities for decoding tokens, checking signatures and working with security-focused developer workflows.
JWT Decode
Decode JWT header and payload, inspect claims and optionally verify HS256, HS384 or HS512 locally.
Encryption Decryption
Encrypt and decrypt text locally with AES-GCM, PBKDF2, random salt and IV, plus Base64 or Hex output.
HMAC Generator
Generate HMAC-SHA digests locally with text, Hex or Base64 keys and Hex, Base64 or Base64URL output.
Checksum Calculator
Calculate CRC-16, CRC-32, Adler-32 and byte-sum checksums locally with Hex and Decimal output.
CRC-16 Hash Generator
Generate CRC-16 checksums locally with UTF-8, UTF-16LE or raw Hex input, multiple variants, and Hex or Base64 output.
CRC-32 Hash Generator
Generate CRC-32 checksums locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
SHAKE-128 Hash Generator
Generate SHAKE-128 extendable-output hashes locally with output length control, UTF-8, UTF-16LE or raw Hex input, and Hex or Base64 output.
SHAKE-256 Hash Generator
Generate SHAKE-256 extendable-output hashes locally with output length control, UTF-8, UTF-16LE or raw Hex input, and Hex or Base64 output.
Whirlpool Hash Generator
Generate Whirlpool digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
WordPress Password Hash Generator
Generate and verify classic WordPress phpass password hashes locally with secure salt generation.
MD2 Hash Generator
Generate legacy MD2 digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
MD4 Hash Generator
Generate legacy MD4 digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
MD5 Hash Generator
Generate legacy MD5 digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
NTLM Hash Generator
Generate NTLM hashes locally using MD4 over UTF-16LE text with Hex or Base64 output.
SHA1 Hash Generator
Generate legacy SHA-1 digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
SHA2 Hash Generator
Generate SHA-256, SHA-384 or SHA-512 digests locally with Hex or Base64 output.
SHA224 Hash Generator
Generate SHA-224 digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
SHA384 Hash Generator
Generate SHA-384 digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
SHA512/224 Hash Generator
Generate SHA-512/224 digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
SHA512/256 Hash Generator
Generate SHA-512/256 digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
SHA3-224 Hash Generator
Generate SHA3-224 digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
SHA3-256 Hash Generator
Generate SHA3-256 digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
SHA3-384 Hash Generator
Generate SHA3-384 digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
SHA3-512 Hash Generator
Generate SHA3-512 digests locally with UTF-8, UTF-16LE or raw Hex input and Hex or Base64 output.
Password Generator
Generate strong random passwords with length, symbol, number and letter controls.