Image Histogram

RGB and luma distribution histogram for any image.

Tool Media & Files Updated Apr 19, 2026
How to Use
  1. Drop image.
  2. Toggle channels.
Image
📊
Drop image
Histogram

Reading

Spike at 0
Clipped shadows
Spike at 255
Blown highlights
Narrow
Low contrast
Shifted
Color cast
Bimodal
Strong fg/bg contrast
Luma
0.299R + 0.587G + 0.114B

About the Image Histogram

The Image Histogram is a simple, free helper for image, audio and file tasks that runs entirely on your own device. RGB and luma distribution histogram for any image.

How it works

Enter what you have and read the result as it updates live. It all runs on your own device, so it is quick and private, with nothing to install.

Want the deeper story? The Knowledge Base explains the ideas behind the tools in more detail.

Frequently Asked Questions

Bins?

256 bins per channel, one per byte value.

How do I use the Image Histogram?

Simply type your numbers and read the result, which refreshes the instant you change something. There is nothing to submit and nothing to wait for.

Does it cost anything or need an account?

No. The tool is completely free, there is no account to create, and it keeps working offline after the page first loads.

Is anything I type uploaded?

No. The tool works entirely on your device, so the values you enter never leave your browser.

Common Use Cases

Exposure

Check clipping.

White balance

Compare R/G/B peaks.

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