🔒 Local browser processing

File Hash Generator

Create a cryptographic checksum to compare file integrity or verify a published download hash. No registration is required.

Reviewed August 4, 2026

Loading the File Hash Generator tool…

How to use File Hash Generator

Choose a file.
Select SHA-256, SHA-384 or SHA-512.
Select Generate Hash.
Copy the hexadecimal result and compare it character-for-character with the expected value.

The tool uses the browser Web Crypto API to digest the complete file and displays the result as lowercase hexadecimal text.

The hash appears on the page and can be copied. The selected file is not changed and no output file is required.

A matching hash supports file equality but does not prove a file is safe or trustworthy.
Different algorithms produce different-length hashes and cannot be compared directly.
Very large files take longer because the complete file must be read.

Privacy note: Supported processing runs in this browser tab. Do not process files you are not authorized to handle, and keep an original backup.

Which algorithm should I use?

SHA-256 is widely used for general file verification; use the same algorithm as the published reference hash.

Does a hash scan for malware?

No. It only calculates a fingerprint of the file bytes.

Why did one small change produce a different hash?

Cryptographic hashes are designed so any byte change produces a substantially different result.

Can two different files have the same hash?

Cryptographic collisions are theoretically possible, but modern SHA-2 hashes are designed to make them impractical for normal verification.

Is the file uploaded?

The browser Web Crypto API processes the selected file locally.

Continue the workflow with another browser-based utility.