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SECURITY & PRIVACY TOOL

File Hash Checker

Calculate a local SHA-256 hash for a selected file.

The selected file is processed locally in your browser and is not uploaded by this tool.

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How to use File Hash Checker Online — Free Tool

  1. Choose the local file you want to hash.
  2. Select or run the available hash calculation.
  3. Compare the generated digest with a trusted checksum supplied by the file publisher.

File Hash Checker Online — Free Tool FAQ

What is a file hash used for?

A hash can help compare file contents and check whether a downloaded file matches a known checksum.

Does matching a checksum prove a file is safe?

No. A matching trusted checksum can confirm file consistency, but it does not by itself prove that a file is harmless.

Why does changing a file change its hash?

Cryptographic hash functions are designed so even a small content change produces a different digest.