Adjust brightness
Lift dark shots or calm glaring ones. Nothing is uploaded.
- Your files are never uploaded
- Processed on your device
- Works offline
- Free, no sign-up
Drop your images here
Images · up to 10 files, 100 MB each
or paste with Ctrl+VLive preview
Settings
Positive values brighten, negative values darken. Small steps look most natural.
PNG keeps every shade exactly. JPG and WebP use the quality below.
Used for JPG and WebP only. PNG is always saved losslessly.
How it works
Add your images
Choose up to 10 images — JPG, PNG, WebP, GIF, BMP, AVIF or HEIC — straight from your device.
Tune the effect
Move the brightness slider until shadows show detail without washing out.
Download the result
Preview each filtered copy, then save them one by one or all together as a ZIP.
Rescue dark or glaring shots
Phone photos taken indoors or at dusk often come out too dark, while snow and beach scenes blow out into glare. A brightness shift lifts shadows or tames highlights in one move.
Start from the gentle default of +25 and nudge up or down while watching the preview. Small steps beat one big jump: detail survives when you brighten gradually.
Keeping detail intact
Pushing brightness too far turns bright areas into flat white with no texture, and skies suffer first. If clouds disappear, dial the amount back until they return.
For black-and-white moods, brighten first and then try the grayscale tool on the result. Save as JPG for sharing or PNG when you plan to edit further.
Yours from start to finish
You pick the files, your browser does the arithmetic, and you keep the downloads. At no stage is a picture handed to a server, a queue, or a stranger's computer.
The tool asks for nothing personal and stores nothing about your session. Because everything happens on-device, even a slow café connection feels instant.
Questions
Are my images uploaded when I use this?
No. Everything runs inside your browser on your own device. Your files are never sent to us or to anyone else.
Will brightening wash out my photo?
Very high values can push bright areas into flat white with no texture. Watch the preview and lower the amount if skies or faces lose detail.
Can I darken a photo too?
Yes. Negative values darken the whole image, which suits harsh midday shots and creates evening moods from daylight pictures.
Is it free?
Yes. Free to use, with no sign-up, no watermark and no daily limits.
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