Image Histogram Analyzer

Load an image to inspect 256-bin red, green, blue, and luminance histograms plus practical exposure statistics without uploading the file.

Choose an image for tonal analysis

JPG, PNG, or WebP · local RGB/luminance histogram

—Average luminance

—Near-black ≤ 5

—Near-white ≥ 250

—Median luminance

—Pixels analyzed

Choose an imageHistogram clipping percentages are descriptive signals, not an automatic quality judgment.

Use the connected image workflow

Optimize only when needed, set dimensions deliberately, convert or edit for a real destination, then inspect the exported result before replacing your source asset.

Browser-local limits

Canvas-based export is browser dependent. PNG is broadly available; JPEG/WebP quality and support can vary, and metadata may not be preserved through canvas re-encoding.