Compute MD5, SHA-1, SHA-256, SHA-512, Keccak-256 hashes in parallel and verify large file checksums streamingly.
Cryptographic Hash & File Checksum Generator on ApexTools is a free, privacy-first online utility. All computations and file transformations process locally or within private auto-purged memory with zero sign-up.
Your data is computed entirely inside your browser's JavaScript engine and is never sent to our servers.
256-bit NIST standard; industry default for software checksums & Bitcoin.
512-bit maximum security hash; optimal for 64-bit architectures.
Original Keccak-256 algorithm used by Ethereum (ETH) smart contracts.
384-bit high-security NIST hash; common in TLS 1.3 & FIPS environments.
160-bit hash; widely used in Git commits and legacy SSL certificates.
128-bit legacy checksum; popular for quick legacy integrity checks.
Paste the checksum provided by the software vendor to verify authenticity
Comparison is case-insensitive and automatically strips whitespace.
Follow these 3 simple steps to complete your conversion in seconds.
Input your value or paste text into the input field for Cryptographic Hash & File Checksum Generator.
Select desired output format, decimal precision, or transformation flags.
The result is calculated instantly. Click Copy or Download to save your converted result.
Common questions and answers about Cryptographic Hash & File Checksum Generator.