Can two different files ever produce the same hash?

Practically no with SHA-256/SHA-512 — a "hash collision" is astronomically unlikely, which is exactly what makes hashing useful for verifying files match.

Does a filename difference affect the comparison?

No — only the file content is hashed; the two files can have completely different names and still match.

Does this tool upload my files anywhere?

No — both files are read and hashed locally, never sent to a server.

Compare File Hash

Check whether two files are byte-for-byte identical by comparing their hashes.

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SHA-1 SHA-256 SHA-512

First file

Second file

Files never leave your device — hashing runs entirely in your browser.

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How it works

1
Choose both files

Each up to 200 MB.
2
Pick an algorithm

SHA-1, SHA-256 or SHA-512 — both files are hashed with the same one.
3
See the match result

Identical hashes mean the files are byte-for-byte identical.

FAQ

Can two different files ever produce the same hash?: Practically no with SHA-256/SHA-512 — a "hash collision" is astronomically unlikely, which is exactly what makes hashing useful for verifying files match.
Does a filename difference affect the comparison?: No — only the file content is hashed; the two files can have completely different names and still match.
Does this tool upload my files anywhere?: No — both files are read and hashed locally, never sent to a server.