Source: https://restorebunny.com/tools/image-brightness/
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# Image Brightness and Contrast Editor
Lighten a dark digital photo or adjust flat tones using brightness and contrast sliders. Start gently and check faces, highlights and shadows in the preview.
Free · No signupPhotos stay in your browser
Brightness 100%Contrast 100%
**Live preview**Choose a photo to begin
Your result will appear here
Local processing. No account needed.
Brightening cannot recover detail that was never captured. Strong adjustments can clip highlights and shadows; retain the original.
**Give an old photo a fresh start**
Repair fading and scan damage with RestoreBunny’s AI photo restoration.
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## How to use brightness & contrast
1. Choose a dark or flat photo.
2. Adjust brightness and contrast while checking the live preview.
3. Reset if needed or download the edited PNG.
## A practical example
Brightness 100% and contrast 100% leave the decoded pixels unchanged. Raising brightness to 120% multiplies each color channel by 1.2, with values capped at 255.
## Frequently asked questions
Can brightness recover an underexposed face?
It can make existing pixels easier to see, but cannot recover information lost in a fully black area.
What is the neutral setting?
Both sliders at 100% are neutral. Use Reset settings to return to those values.
## Keep working on your photo
- [Make a black-and-white copy]()
- [Restoration quality checklist]()
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By RestoreBunny · Reviewed 2026-10-12. Utilities use local calculations or [browser image processing](). The download button identifies the output format. Animated images export one decoded frame. Keep your original files.