#cryptographic-hash

Generate BLAKE3 hashes from text or files, or check a hash you already have against them. 256-bit by default, any length up to 1,048,576 bytes, optional key.

Hash text or files up to 2 GiB with SHA-256 and copy the 64-character hex digest, or paste a published checksum to verify a download.

Generate SHA-1 digests from text or uploaded files: 160 bits, 40 hexadecimal characters. SHA-1 is not suitable for new security-sensitive uses.

Generate MD4 digests from text or files up to 2 GiB each for legacy compatibility. MD4 is cryptographically broken.

Generate MD5 digests from text or uploaded files: 128 bits, 32 hexadecimal characters. MD5 is cryptographically broken and is for legacy use only.

Generate SHA-512/224, SHA-512/256 or full SHA-512 digests from text or files up to 2 GiB each.

Generate SHA-384 digests from text or files up to 2 GiB each: 384 bits, 48 bytes, 96 hexadecimal characters.

Generate SHA-224 digests from text or files up to 2 GiB each: 224 bits, 28 bytes, 56 hexadecimal characters.

Generate SHAKE128 or SHAKE256 extendable-output hashes of 1 to 1,048,576 bytes from text or files up to 2 GiB each.

Generate Keccak-224, Keccak-256, Keccak-384 or Keccak-512 hashes from text or files up to 2 GiB each.

Generate SHA3-224, SHA3-256, SHA3-384 or SHA3-512 digests from text or files up to 2 GiB each.

Generate BLAKE2b digests at 128, 256, 384 or 512 bits, or any length from 1 to 64 bytes, from text or files up to 2 GiB each.

Generate BLAKE2s digests at 128, 160 or 256 bits, or any length from 1 to 32 bytes, from text or files up to 2 GiB each.