File Hash Generator

Generate SHA-256, SHA-512, SHA-1 and MD5 hashes of any file in your browser. Verify downloads and spot duplicates instantly.

Runs entirely in your browser — no uploads

About this tool

File Hash computes SHA-256, SHA-512 and SHA-1 with the browser’s native Web Crypto engine, and MD5 in pure JavaScript — useful for legacy checksum lists.

Hashes are computed locally in streaming chunks, so even large files process without freezing the page. Compare a published checksum against yours to verify a download.

Free · no account No file uploads Works on mobile Supports Up to 500 MB per file

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FAQ

Which hash should I use to verify a download?
SHA-256 is today’s standard. Use MD5 or SHA-1 only when a publisher provides those instead.
Can two different files share a hash?
Collisions are theoretically possible but practically never seen with SHA-256 for honest comparison.
Are my files uploaded?
No. Hashing happens entirely on your device with Web Crypto.