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File Hash Calculator: SHA-256 Checksum for Files | Free Tool

5 uses

Drop a file here or click to browse

SHA-256
SHA-384
SHA-512
SHA-1

File Hash Tips

4 Hash Algorithms
Calculate SHA-1, SHA-256, SHA-384, and SHA-512 hashes for any file simultaneously.
Drag & Drop
Simply drag and drop a file or click to browse. No file size limit for browser processing.
100% Local
Files are hashed entirely in your browser using the Web Crypto API. Nothing is uploaded.
Verify Integrity
Compare hash values to verify that downloaded files have not been tampered with.

Frequently Asked Questions

Q How do I verify a file hash?
A Drop the file to get its hash, then compare with the hash provided by the source. If they match, the file is intact.
Q Are my files uploaded?
A No. All hashing happens locally in your browser. Files never leave your device.
Q What hash should I use?
A SHA-256 is the most commonly used for file verification. SHA-512 offers stronger security.
Q Is this free?
A Yes.
Q Do I need to install any software to use this file hash calculator?
A No, this online file hash calculator runs entirely in your web browser. You don't need to download or install any applications or plugins. Simply open the webpage on your desktop or mobile device, drop your file, and instantly get its SHA-1, SHA-256, SHA-384, or SHA-512 checksum. It's designed for quick, hassle-free file integrity verification.
Q What should I do if the file hash I calculated doesn't match the original source's checksum?
A If your calculated SHA-1, SHA-256, SHA-384, or SHA-512 checksum doesn't match the one provided by the source, it indicates a potential issue. This discrepancy often means the downloaded file is either corrupted, incomplete, or has been tampered with. For critical files like software installers or security updates, *do not use the file*. It's best to delete it and re-download from a trusted source, then re-verify the hash to ensure file integrity.

How to Calculate File Hashes

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