Image brightness
Lighten or darken a photo with a precise brightness control.
Your workspace
On-device processingLoading the tool…
Your files and text are processed in this browser. They are not uploaded to our server. Closing or refreshing the page clears your work.
A closer look
Adjust the overall brightness of a JPG, PNG or WebP without installing a photo editor. The amount starts at 100%, which applies no brightness adjustment; lower values darken the image and higher values brighten it, up to 200%. Choose an output format, run the tool and compare the original with the processed preview. This is a straightforward pixel adjustment on your device, not automatic exposure repair or AI enhancement. Keep the original for further editing.
A practical example
For a slightly dark product photo, start at 115%, choose JPG and run the tool. Compare the product details and bright reflections before downloading; lower the amount if highlights become flat white.
Common questions
Can this recover details from a very dark or overexposed photo?
It brightens or darkens existing pixel values across the whole image. It does not reconstruct missing detail, selectively repair shadows or recover clipped highlights. Make small adjustments and compare the result rather than assuming a stronger setting is better.
Which files and output settings are supported?
Choose one JPG, PNG or WebP up to 20 MB, 24 megapixels and 8,192 pixels on either side. Export as PNG, JPG or WebP. The quality slider applies to JPG and WebP encoding, not PNG compression; metadata and animation are not preserved.
How to use this tool
- Choose your file from your device. It stays in your browser.
- Choose the available options, then select Run tool.
- Review the result and download or copy it. Keep your original.
Before you start
JPG, PNG and WebP only. One image up to 20 MB and 24 megapixels. Export removes metadata; animation is not preserved. JPG uses a white background.
Quick answers
Does this tool send my input to a server?
No. Your input is processed in this browser. Download the result before closing the page; your workspace is not saved to an account.
What should I check before using the result?
Keep the original. Check the output’s content, layout, quality and format before sharing it or using it for important work. Review the limitations above for details.