Online Tool Store
Image Histogram Viewer
Prepare an image histogram analysis with photo selection, RGB and luminance channels, summary metrics, and export controls in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Sample RGB distribution is visible.
- Brightness
- 142
- Contrast
- Medium
- Highlights
- 7.4%
- Shadows
- 12.1%
How histogram review works
- Select an image to prepare it for inspection.
- Choose RGB or luminance to focus the display.
- Use the summary metrics to assess brightness and clipping.
FAQ
What does an image histogram show?
It shows how pixel brightness values are distributed from dark shadows to bright highlights.
What is the difference between RGB and luminance?
RGB separates red, green, and blue values; luminance focuses on perceived brightness.
Is my image uploaded?
No. This frontend workspace keeps file selection local.
How we compare
| Feature | Online Tool Store | Photo editors | Camera analysis apps |
|---|---|---|---|
| RGB and luminance views | Included | Included | Often included |
| Quick tonal summary | Included | Included | Varies |
| Editing controls | Not included | Included | Limited |
Choose a photo editor for exposure corrections. Choose this tool for a simple private histogram review workspace.