How to Use the Image Levels Editor
- Select the image you want to edit.
- Move the brightness, contrast, saturation and gamma sliders.
- Watch the preview update in real time.
- Reset if needed, then download the adjusted image.
What adjusting levels does
Levels control the brightness and contrast of an image by remapping its dark, mid and light tones. Nudging them can rescue a photo that looks too dark, washed out or flat, giving it punchier contrast and truer tones.
It is one of the most useful quick edits because so many everyday photos simply need their exposure and contrast balanced.
Quick fixes, done privately
For a fast correction, adjust the overall brightness and contrast until the image looks right; for more control, shift the individual tonal ranges. Small changes usually beat heavy-handed ones, which can crush detail in the shadows or highlights.
Edits happen in your browser on a copy of the image, so your original file is untouched and nothing is uploaded.
Frequently Asked Questions
What does gamma do?
Gamma adjusts the mid-tones without clipping the darkest and lightest areas, which helps brighten shadows or tame highlights more naturally than plain brightness.
Can I undo my changes?
Yes. Use the reset button to return every slider to its default and see the original image again.
Is my photo uploaded?
No. All adjustments run on the Canvas API in your browser, keeping your image private.