> For the complete documentation index, see [llms.txt](/llms.txt).
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15 endpoints

# Hash & Checksum API

SHA, MD5, HMAC, and digest utilities with stable JSON output. Same bearer token, same credit pool, same JSON envelope as every other endpoint — drop them into apps, sites, workflows, or agents without rebuilding formulas, validation, or docs.
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Checksum
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Adler-32 Checksum Calculator adler32-checksum-calculator
Calculate the Adler-32 checksum of UTF-8 text with A and B component breakdown.
1cr · v2026-04-22
](/tools/adler32-checksum-calculator/) [
CRC32 Checksum Calculator crc32-checksum-calculator
Calculate the IEEE CRC32 checksum of text in hex, decimal, and binary form.
1cr · v2026-04-22
](/tools/crc32-checksum-calculator/) [
CRC64 Checksum Calculator crc64-checksum-calculator
Calculate the CRC64 checksum of text using ECMA-182, WE, or Jones polynomial variants.
1cr · v2026-04-22
](/tools/crc64-checksum-calculator/) [
FNV-1a Hash Generator fnv1a-hash-generator
Generate a fast non-cryptographic FNV-1a hash in 32, 64, 128, or 256-bit variants.
1cr · v2026-04-22
](/tools/fnv1a-hash-generator/) [
MurmurHash3 Generator murmurhash3-generator
32-bit MurmurHash3 (x86) of the input text, in decimal, hex, and binary, with a configurable seed.
1cr · v2026-04-22
](/tools/murmurhash3-generator/)
Digest
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BLAKE2b Hash Generator blake2b-hash-generator
Generate a BLAKE2b digest with 256, 384, or 512-bit output.
1cr · v2026-04-22
](/tools/blake2b-hash-generator/) [
MD5 Hash Generator md5-hash-generator
Generate an MD5 hex digest for checksum and legacy compatibility.
1cr · v2026-04-22
](/tools/md5-hash-generator/) [
SHA1 Hash Generator sha1-hash-generator
Generate the SHA-1 hash (160-bit) of text.
1cr · v2026-04-22
](/tools/sha1-hash-generator/) [
SHA-224 Hash Generator sha224-hash-generator
Generate the SHA-224 hash (224-bit) of text.
1cr · v2026-04-22
](/tools/sha224-hash-generator/) [
SHA-256 Hash Generator sha256-hash-generator
Generate a SHA-256 hex digest of a UTF-8 string.
1cr · v2026-04-22
](/tools/sha256-hash-generator/) [
SHA3-256 Hash Generator sha3-256-hash-generator
Generate the SHA3-256 hash (256-bit Keccak) of text.
1cr · v2026-04-22
](/tools/sha3-256-hash-generator/) [
SHA3-384 Hash Generator sha3-384-hash-generator
Generate the SHA3-384 hash (384-bit Keccak) of text.
1cr · v2026-04-22
](/tools/sha3-384-hash-generator/) [
SHA3-512 Hash Generator sha3-512-hash-generator
Generate a SHA3-512 hex digest of a UTF-8 string.
1cr · v2026-04-22
](/tools/sha3-512-hash-generator/) [
SHA-384 Hash Generator sha384-hash-generator
Generate a SHA-384 hex digest of a UTF-8 string.
1cr · v2026-04-22
](/tools/sha384-hash-generator/) [
SHA-512 Hash Generator sha512-hash-generator
Generate a SHA-512 hex digest of a UTF-8 string.
1cr · v2026-04-22
](/tools/sha512-hash-generator/)
API OPERATIONAL v1 · OpenAPI 3.1 · MCP 2025-06-18
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