Low-Light Photo Enhancer
Brighten dark or backlit photos right in your browser — one-click auto enhance or manual brightness, gamma and contrast controls
Low-Light Photo Enhancer Online Free | Brighten Dark Photos
Photos taken in low light often come out dark and hard to read. This tool raises brightness, gamma and contrast to recover detail in the shadows. Use auto enhance or fine-tune by hand. Everything runs in your browser — your images are never uploaded.
100% local processing in your browser. No files are sent to external servers.
Drag your photo here
or click to browse
How It Works
- Drag or upload a dark photo (PNG, JPG, WebP)
- Press "Auto enhance" for an instant fix
- Fine-tune with the gamma, brightness and contrast sliders
- Download the enhanced image as PNG
Frequently Asked Questions
What does auto enhance do?
It analyzes the image's luminance histogram, stretches contrast between the 1% and 99% percentiles, and computes an adaptive gamma from the mean brightness — brightening darker photos more.
Are my photos uploaded anywhere?
No. All processing happens locally in your browser via Canvas. No file ever leaves your device.
What format is the result saved in?
The enhanced image is saved as lossless PNG.