Which file types does File Hash Generator 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".

What do I get back from File Hash Generator?

The answer on the screen first, and the TXT download if you want to keep it. Nothing has to be stored anywhere just to be read again later.

Is there a file size limit?

A single file may be up to 100 MB, and a batch up to 50 files. Those are guardrails rather than a paid tier — the work happens on your machine, so an enormous document is limited by your own memory before it is limited by us.

Is it safe to use for a document with personal details in it?

That is the design goal: the document stays on your device, so a statement, a contract or an ID photo is never transmitted for processing. Nothing here needs an internet connection once the page has loaded, apart from engines that fetch their own model data.

File Hash Generator

SHA-1/256/384/512 fingerprints for any file.

Drop any files to fingerprint

Files are read in memory only — nothing is uploaded

Optional: expected digest to verify againstPaste 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 File Hash Generator

In your browser tab, File Hash Generator handles answering a question about a file rather than converting it. SHA-1/256/384/512 fingerprints for any file. It takes any file type and produces TXT. Files up to 100 MB each, 50 at a time, and the work happens on your own machine rather than on a server.

Handy on a phone, where File Hash Generator beats searching the app store for a one-job utility.

How to use File Hash Generator in 3 steps

Drop the file onto the drop area — it does not have to be a PDF or an image.
Choose which digests to compute — SHA-1 through SHA-512.
Press Generate hashes, read the answer on the screen and keep the TXT copy only if you want it.

What you get with File Hash Generator

The answer is on the page, and the TXT copy is optional
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

File Hash Generator: questions

Which file types does File Hash Generator 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".
What do I get back from File Hash Generator?: The answer on the screen first, and the TXT download if you want to keep it. Nothing has to be stored anywhere just to be read again later.
Is there a file size limit?: A single file may be up to 100 MB, and a batch up to 50 files. Those are guardrails rather than a paid tier — the work happens on your machine, so an enormous document is limited by your own memory before it is limited by us.
Is it safe to use for a document with personal details in it?: That is the design goal: the document stays on your device, so a statement, a contract or an ID photo is never transmitted for processing. Nothing here needs an internet connection once the page has loaded, apart from engines that fetch their own model data.