Is this tool private?

Yes. All processing happens locally in your browser. No data is uploaded.

What extras does this tool have?

Extras: (1) Core function, (2) Batch mode, (3) Copy results, (4) Download, (5) History, (6) CSV export, (7) Custom options, (8) Validation, (9) Warnings, (10) Stats, (11) Multi-format, (12) Configurable, (13) Preview.

Image Runs in your browser

Image Histogram Viewer

View RGB+luminance histograms with stats, clipping warnings, and curve overlay. 100% private. 100% private.

100% Private Works Offline Instant

Upload image

Privacy: all image processing runs locally in your browser. Luminance uses Rec. 709 weights (0.2126 R + 0.7152 G + 0.0722 B). Equalization applies CDF-based mapping per channel.

View RGB+luminance histograms with stats, clipping warnings, and curve overlay. 100% private. 100% private. Everything runs locally in your browser — your data never leaves your device.

How to use

Enter your input in the tool above.
Adjust any options to your preference.
Use the Copy or Download buttons to save the result.
Everything happens locally — your data never leaves your browser.

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