Adjust Brightness — Brighten or darken an image
Adjust Brightness fine-tunes the image with a live slider. Optionally apply the change to just a selected area by ticking the box and dragging on the image.
How to use Adjust Brightness
- Import your image.
- Drag the slider to adjust.
- To affect only part of the image, tick “apply to selected area” and drag the box.
- Pick a format and click Save.
Why use this Adjust Brightness tool
- Free & unlimited — no sign-up, no watermark and no daily limits.
- 100% private — the Adjust Brightness tool runs in your browser, so your files are never uploaded.
- Works on every device — Windows, Mac, Linux, Android and iPhone, straight from the browser.
- Fast & live — see the result update instantly and download in one click.
Frequently asked questions
How do I use the Adjust Brightness tool?
Adjust Brightness fine-tunes the image with a live slider. Optionally apply the change to just a selected area by ticking the box and dragging on the image. Just add your input, adjust the options, and download the result — it runs instantly and free in your browser.
Is Adjust Brightness free and private?
Yes. Adjust Brightness is completely free with no watermark and no sign-up, and it works 100% in your browser, so your files are never uploaded.
What is adjust brightness used for?
It's ideal for tasks like brightness image, brighten photo, darken image — all handled locally on your device with no limits.
Related searches: brightness image · brighten photo · darken image