Which file types does SHA-256 File Checker accept?

The drop area takes any file type. Files are read from your device in the browser, so the format has to be one a browser can decode — that is why the accepted list on this page is finite and honest rather than "everything".

Does SHA-256 File Checker produce a file?

No. It reads what you gave it and answers on the page. That is deliberate — for an inspection question, downloading a report about your own file would only move the data somewhere it does not need to be.

How big a file can I use?

Up to 100 MB per file and 50 files per batch. There is no server queue behind that limit; the practical ceiling is your browser's memory, so split unusually large documents into two runs.

Where does the processing actually happen?

In this tab. The file is read locally, converted or edited locally, and handed back as a download — no copy is sent to a server, so there is nothing for anyone to breach or keep.

SHA-256 File Checker

Verify a file against a known SHA-256.

Drop the file you want to verify

Files are read in memory only — nothing is uploaded

Expected digestPaste hex with or without spaces. The comparison runs over the same bytes, so it is exact.

Hashes are fingerprints, not proofs of safety: a matching digest means identical bytes. SHA-1 is offered for legacy checksums only and is collision-broken — do not rely on it for integrity guarantees.

Add a file first.

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About SHA-256 File Checker

The job of SHA-256 File Checker is narrow on purpose: verify a file against a known SHA-256. The answer is shown on the page — there is no converted file to download. Nothing is sent anywhere: the browser reads the file, does the work and hands the result back.

SHA-256 File Checker earns its place when the file is the awkward kind — a contract, a scan, an ID — and it should not leave the machine it is already on.

How to use SHA-256 File Checker in 3 steps

Drop the file onto the drop area — it does not have to be a PDF or an image.
Set the SHA-256 value you expect, to check the file against.
Press Verify digest and read the answer on the screen; nothing leaves your device to be computed.

What you get with SHA-256 File Checker

Answers on the page, with no file to open afterwards
Digests computed locally, so a checksum needs no upload
Works on any file type, not only PDFs and images
Free to use, with no signup and no account
No watermark or logo added to your output
Works on desktop and mobile, no install

SHA-256 File Checker: questions

Which file types does SHA-256 File Checker accept?: The drop area takes any file type. Files are read from your device in the browser, so the format has to be one a browser can decode — that is why the accepted list on this page is finite and honest rather than "everything".
Does SHA-256 File Checker produce a file?: No. It reads what you gave it and answers on the page. That is deliberate — for an inspection question, downloading a report about your own file would only move the data somewhere it does not need to be.
How big a file can I use?: Up to 100 MB per file and 50 files per batch. There is no server queue behind that limit; the practical ceiling is your browser's memory, so split unusually large documents into two runs.
Where does the processing actually happen?: In this tab. The file is read locally, converted or edited locally, and handed back as a download — no copy is sent to a server, so there is nothing for anyone to breach or keep.