FileBrixNo upload · Private
Processed locally — your file never leaves your device

Adjust Image Brightness

Brighten or darken PNG, JPG and WebP images by a precise percentage, with a live preview and batch support.

Drop PNG, JPEG, WebP or SVG images hereor click to choose a file from your deviceNothing is uploaded — every image is processed entirely on your device.

How it works

  1. Drop one or more PNG, JPG or WebP images.
  2. Set a brightness amount — type a number or drag the slider, in 1% steps.
  3. Look at the result preview, then download individually or as a .zip.

Frequently asked questions

Are my images uploaded to a server?
No. The adjustment is applied by your own browser's graphics engine, entirely on your device.
Can I fine-tune the amount?
Yes. The control pairs a wide slider with a number box and moves in 1% steps, because judging brightness means trying a value, looking, and trying the next one.
Can I apply the same brightness to many images?
Yes — drop several files, set the amount once, and download all the results together as a .zip.
Can I combine this with other adjustments?
Yes. After applying, choose "Continue editing this result" to feed the output straight into another action, such as contrast or a crop, without downloading in between.