File Hash Calculator Free Online — No Upload

How to Calculate File Hashes

Upload your file

Drag and drop any file or click to select it. All file types are supported — documents, images, archives, executables and more.

Choose the algorithm

Select SHA-256, SHA-384, or SHA-512. SHA-256 is the most commonly used for file integrity verification.

Copy or compare the hash

Copy the calculated hash to your clipboard. Compare it with a known hash to verify your file has not been tampered with.

Why use FyleTools for file hashing?

100% Private

Your file never leaves your device. The hash is calculated entirely in your browser — no server uploads, no third-party access.

Free & Unlimited

No registration, no file limits. Calculate hashes for as many files as you need, completely free.

Multiple Algorithms

Choose from SHA-256, SHA-384, or SHA-512. Industry-standard cryptographic hash functions for reliable integrity verification.

Frequently Asked Questions

Is my file uploaded to a server?

No. The hash is calculated entirely in your browser. Your file never leaves your device.

What is a file hash?

A hash is a unique fingerprint of a file. Even a tiny change to the file produces a completely different hash, making it ideal for verifying file integrity.

Which algorithm should I use?

SHA-256 is the most widely used and recommended for general purposes. SHA-384 and SHA-512 provide longer hashes for additional security.

Can I hash any file type?

Yes. The hash function works on any file regardless of type — documents, images, videos, archives, executables, and more.