checksum

Sum the ASCII code of every character in strict-ASCII text and get a mod-256 checksum.

Compute the 128-bit MD5 digest of any text, entirely in your browser.

Compute the 128-bit MD4 digest of any text, entirely in your browser.

Compute the 160-bit SHA-1 digest of any text, entirely in your browser.

Compute the 224-bit SHA-224 digest of any text, entirely in your browser.

Compute the 256-bit SHA-256 digest of any text, entirely in your browser.

Compute the 384-bit SHA-384 digest of any text, entirely in your browser.

Compute the 512-bit SHA-512 digest of any text, entirely in your browser.

Compute the 224-bit SHA3-224 digest of any text, entirely in your browser.

Compute the 256-bit SHA3-256 digest of any text, entirely in your browser.

Compute the 384-bit SHA3-384 digest of any text, entirely in your browser.

Compute the 512-bit SHA3-512 digest of any text, entirely in your browser.

Compute the 160-bit RIPEMD-160 digest of any text, entirely in your browser.

Compute the 512-bit Whirlpool digest of any text, entirely in your browser.

Compute the 512-bit BLAKE2b digest of any text, entirely in your browser.

Compute the 256-bit BLAKE2s digest of any text, entirely in your browser.

Compute the 256-bit BLAKE3 digest of any text, entirely in your browser.

Compute the 32-bit CRC32 checksum of any text, entirely in your browser.

Compute the 32-bit Adler-32 checksum of any text, entirely in your browser.

Compute the 32-bit FNV-1 hash of any text, entirely in your browser.

Compute the 32-bit FNV-1a hash of any text, entirely in your browser.

Compute the 32-bit xxHash (XXH32) digest of any text, entirely in your browser.

Compute the 32-bit MurmurHash3 (x86 variant) digest of any text, entirely in your browser.

Compute the NTLM password hash of any text, entirely in your browser.

Compute the 128-bit MD2 digest of any text, entirely in your browser.

Compute the 256-bit MD6 digest of any text, entirely in your browser.

Compute the 16-bit CRC16 checksum of any text, entirely in your browser.

Compute the 128-bit RIPEMD-128 digest of any text, entirely in your browser.

Compute the 256-bit RIPEMD-256 digest of any text, entirely in your browser.

Compute the 320-bit RIPEMD-320 digest of any text, entirely in your browser.

Compute the 160-bit SHA-0 digest of any text, entirely in your browser.

Compute all four SHA-2 family digests (SHA-224, SHA-256, SHA-384, SHA-512) of the same text at once.

Compute all four SHA-3 family digests (SHA3-224, SHA3-256, SHA3-384, SHA3-512) of the same text at once.

Compute the 8-bit CRC-8 checksum of any text, entirely in your browser.

Compute the 24-bit CRC-24/OpenPGP checksum of any text, entirely in your browser.

Compute the 64-bit CRC-64 checksum of any text, entirely in your browser.

Compute the raw Keccak-256 digest of any text, entirely in your browser, the variant Ethereum uses.

Compute a SHAKE256 digest of any text, entirely in your browser, defaulting to 64 bytes of output.

Compute the 256-bit digest of the original BLAKE hash function, entirely in your browser.

Compute a BLAKE2 digest of any text, entirely in your browser, defaulting to BLAKE2b.

Compute double SHA-256 (sha256(sha256(input))) of any text, entirely in your browser.

Generate a Simple File Verification (SFV) listing line for a filename and its content, entirely in your browser.

Check pasted content's CRC32 against every entry in a pasted SFV listing, entirely in your browser.

Generate random ISBN-10 and/or ISBN-13 numbers with a correctly computed check digit.