File Hash Calculator

Calculate MD5, SHA-256, SHA-512, BLAKE3 & more - Fast, Private, Free

← Back to File Type Detector

Select Hash Algorithms

Drop files or a folder here

or use the buttons above to calculate file hashes

Calculating hashes...

Hash Results

Nothing gets uploaded. All hashes are calculated in your browser using WebAssembly.

About Our File Hash Calculator

Compute cryptographic checksums for any file directly in your browser. Select from 11 hash algorithms - MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, SHA3-256, SHA3-512, BLAKE2b, BLAKE2s and BLAKE3 - and calculate them all in a single pass. Your files never leave your device. Ideal for verifying downloads, checking file integrity, and comparing checksums.

How It Works

Select the hash algorithms you need, then drop one or more files (or a whole folder) onto the page. The tool reads each file in chunks and streams the bytes through every selected hasher simultaneously, so even large files are processed efficiently in a single pass - entirely on your device.

Supported Hash Algorithms

  • MD5 and SHA-1 - fast, legacy checksums (not collision-resistant; use for non-security integrity checks).
  • SHA-2 family - SHA-224, SHA-256, SHA-384, SHA-512, the modern standard for file integrity.
  • SHA-3 family - SHA3-256 and SHA3-512, based on the Keccak sponge construction.
  • BLAKE2 - BLAKE2b and BLAKE2s, fast and secure modern hashes.
  • BLAKE3 - extremely fast, parallel-friendly modern cryptographic hash.

Common Use Cases

  • Verify a downloaded file matches the checksum published by its author
  • Confirm two files are identical by comparing their hashes
  • Detect accidental corruption after copying or transferring files
  • Generate checksums for release artifacts and backups
  • Compute BLAKE3 or SHA-256 digests for build pipelines