Source: https://restorebunny.com/tools/image-hash-checker/

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# Image Hash Checker

Hash one or more images locally and compare their bytes. Download a filename and SHA-256 manifest to verify a later copy.

Free · No signupLocal browser processing

**Choose up to 12 photos**Up to 16 MP per photo · 20 MB per file · 80 MB per batch

**Result**Ready for your input

Your result will appear here

No signup or server upload.

SHA-256 identifies byte changes; it is not a perceptual duplicate finder or a proof of ownership. Keep a trusted copy of the manifest.

**Give an old photo a fresh start**

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## How to use image hash checker

1. Choose your source file or files from this device.
2. Adjust the controls and inspect the result.
3. Download the output shown by the tool; keep the original files.

## A practical example

A renamed file keeps the same SHA-256 if its bytes are unchanged. A visually identical re-export can have a different hash because its encoding or metadata changed.

## Frequently asked questions

Is image hash checker free to use?

Yes. This utility works without a signup or paid credit. Files and calculations are processed in this browser.

What should I check before using the result?

SHA-256 identifies byte changes; it is not a perceptual duplicate finder or a proof of ownership. Keep a trusted copy of the manifest.

## Keep working on your photo

- [Browse all free tools](<https://restorebunny.com/tools/>)
- [Check photo resolution](<https://restorebunny.com/tools/photo-resolution-checker/>)

[Browse all free tools](<https://restorebunny.com/tools/>)

By RestoreBunny · Reviewed 2026-10-16. Utilities use local calculations or [browser image processing](<https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Pixel_manipulation_with_canvas>). The download button identifies the output format. Animated images export one decoded frame. Keep your original files.