Image Brightness & Contrast

Adjust the brightness, contrast, and saturation of an image with simple sliders. Everything runs in your browser—your images never leave your device.

FAQ

Are my uploaded images sent to a server?

No. All adjustments happen entirely in your browser and images never leave your device.

What does 100% mean?

100% is the original. Below 100 makes it darker or flatter; above 100 makes it brighter or more vivid.

Can I make it black and white?

Set saturation to 0% for black and white. For preset filters like sepia, use the Image Color Filter tool.

Apply grayscale, sepia, or color-invert filters to an image. Everything runs in your browser—your images never leave your device.

Shrink image file size by adjusting quality, with an instant before/after size comparison. Everything runs in your browser.

Convert images between PNG, JPG, and WebP. Everything runs in your browser—your images never leave your device.

Fill a transparent PNG background with a solid color—handy before converting logos or icons to JPG. Everything runs in your browser.

Apply a blur to an image to hide sensitive information or soften a background. Everything runs in your browser.

Add a solid border of any color and thickness around an image. Everything runs in your browser—your images never leave your device.