📁
Drop a JPG, PNG or WebP photo here or click to browse
.jpg · .png · .webp · One image at a time · Nothing uploaded
Works best under 20MB - very large photos may be slow on mobile
- × -
Brightness-adjusted preview
✓ Brightness updated
One simple brightness slider Live preview No uploads, ever
How it works
01

Upload your photo

Drop in a JPG, PNG or WebP file, or click to browse. It stays on your device the whole time.

02

Drag the brightness slider

Or tap a preset swatch for an instant look - the preview updates live, from 0% to 200%.

03

Download

Choose an output format and grab the adjusted photo instantly - no sign-up required.

ℹ About Image Brightness

Brightness controls how light or dark a photo looks overall, while color and contrast relationships stay the same. Push it up to rescue an underexposed shot; pull it down to tone down a photo that's too washed out or to create a moodier look.

Need more control? The Image Color Changer adds hue, saturation, contrast, tint and grayscale on top of brightness. Want more vivid colors instead? Try Image Saturation.

Free Online Brightness Adjuster

imgxcolor's brightness tool adjusts the exposure of JPG, PNG and WebP photos directly in your browser - no software, no file uploads, no cost. Drop in a photo, drag one slider or tap a preset swatch, and download the result in seconds.

It's built to be quick: no menus to dig through, just the one control that matters when all you want is a lighter or darker photo.

What Brightness Does

Brightness ranges from 0% (solid black) to 100% (the original photo) up to 200% (maximum brightness). A small increase lifts a dim, underexposed shot; a small decrease tones down a photo that's blown out. Colors and contrast relationships are untouched, so the photo still looks natural at any level.

Privacy - 100% Client-Side

Every brightness adjustment runs locally with JavaScript and the Canvas API. Your photo is never uploaded, stored, or transmitted, which makes this tool safe for client work or personal photos. There are no accounts, sign-ups, or usage limits.

Frequently Asked Questions

Does adjusting brightness upload my photo to a server?

No. The brightness adjustment runs entirely in your browser using the Canvas API. Your photo is never uploaded, stored, or transmitted anywhere.

What does "brightness" mean on an image?

Brightness controls how light or dark a photo looks overall. Increasing it lightens every pixel; decreasing it darkens every pixel, down to solid black at 0%. Color and contrast relationships stay the same.

Can I get back to the original photo?

Yes. Click Reset, or set the slider back to 100%, to return to the original photo at any time before downloading.

What file formats are supported?

You can adjust brightness on JPG, PNG and WebP images, and download the result in any of those three formats regardless of the original.