File Hash and Checksum Generator

Verify downloads with SHA-256, SHA-1, MD5 and CRC-32 checksums.

Drop any file to compute its checksumsLarge files are streamed in chunks. Nothing is uploaded.

What does File Hash Generator do?

Compute checksums for any file to confirm it downloaded intact and unmodified. Large files are streamed in chunks, so a multi-gigabyte ISO is hashed without loading it all into memory.

How to Use File Hash Generator

1
Select a fileDrag it in, or tap to browse.
2
Choose the algorithmSHA-256 is what most vendors publish.
3
ComparePaste the published checksum for an automatic verdict.

Key Features

SHA-256, SHA-1, SHA-384, SHA-512, MD5 and CRC-32
Streaming for large files, with a progress indicator
Paste an expected checksum for an automatic match check
Hash several files at once and compare them
Case-insensitive comparison, since published checksums vary

Frequently Asked Questions

How do I verify a downloaded file?

Find the checksum the vendor published next to the download, hash your copy here, and compare. A match means the file is byte-for-byte identical to what they released.

What if the checksums do not match?

Do not run the file. It means the download was corrupted or the file was tampered with. Re-download from the official source and check again; if it still differs, treat it as untrusted.

Which algorithm should I use?

SHA-256, and use whichever the vendor published. MD5 and SHA-1 still catch accidental corruption but can be deliberately forged, so they prove nothing against a determined attacker.

How large a file can it handle?

Very large ones. The file is read in chunks rather than loaded whole, so multi-gigabyte files work — it is limited by patience rather than memory.

Runs in your browser

Files are read directly from your device by the browser and processed in this page. Nothing is uploaded, which is why there is no progress bar and why large files are handled instantly.

How the rest of the site handles data