Image RGB Histogram

Measure 16 bins per channel from a bounded sample.

Open this tool

A channel histogram describes a distribution of pixel values, not the subject of the photograph.

Compare the sampled RGB bins with the picture before drawing a tonal conclusion.

Inputs and controls

One image

Source images

JPEG, PNG, WebP

Static images. Up to 4 MiB per file, 12 MiB total and 4 million pixels per image. One source image.

How to use

Choose a static JPEG, PNG or WebP source. Check the displayed upload limits before processing.
Select Prepare image. Inspect the resulting preview, dimensions and file size, then download the output you need.

Why use this tool

Separate channel distributions make colour value patterns easier to inspect.

Before relying on the result

Compare the finished picture with its source. Content, sampling and the intended appearance matter alongside the distribution.

Questions

Does the histogram prove correct exposure?

No. Content, sampling and the intended appearance matter alongside the distribution.

Do I need to review the output?

Separate channel distributions make colour value patterns easier to inspect. Compare the sampled RGB bins with the picture before drawing a tonal conclusion.

Source page last modified: 2026-10-04T18:22:35+00:00. This profile describes the tool; use its page to run it.

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