Source: https://restorebunny.com/tools/image-histogram/

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# Image Histogram

View red, green, blue and luminance histograms for a local image. See the proportion of fully black and white sampled pixels.

Free · No signupLocal browser processing

**Choose a photo**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.

Analysis samples a preview up to 1000 pixels per side. A histogram alone cannot decide whether a photograph has good exposure or authentic detail.

**Give an old photo a fresh start**

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## How to use image histogram

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 photo with many bright pixels has more counts toward the histogram’s right side. A white paper border can create that pattern even when the subject is correctly exposed.

## Frequently asked questions

Is image histogram 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?

Analysis samples a preview up to 1000 pixels per side. A histogram alone cannot decide whether a photograph has good exposure or authentic detail.

## 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.