Brightness Adjuster
Lift or dim exposure on photos and screenshots.
About Brightness Adjuster
Brightness Adjuster is here for editing a picture one job at a time: lift or dim exposure on photos and screenshots. It takes JPG, JPEG, PNG and 9 more and produces JPG, JPEG, PNG, WEBP. Files up to 100 MB each, 50 at a time, and the work happens on your own machine rather than on a server.
The slow route to editing a picture one job at a time is installing something, making an account and uploading the file; this is the fast route.
How to use Brightness Adjuster in 3 steps
- Drop the image onto the drop area, or several at once up to 50 files.
- Set the Brightness slider.
- Press Apply Brightness and download the result in whichever of JPG, JPEG, PNG, WEBP suits you.
What you get with Brightness Adjuster
- Accepts JPG, JPEG, PNG and 9 more in one go
- Output in JPG, JPEG, PNG, WEBP
- Batch up to 50 files, returned together
- Runs in your browser — the file is never uploaded
- Free to use, with no signup and no account
- No watermark or logo added to your output
- Works on desktop and mobile, no install
Brightness Adjuster: questions
- How big a file can I use?
- Up to 100 MB per file and 50 files per batch. There is no server queue behind that limit; the practical ceiling is your browser's memory, so split unusually large documents into two runs.
- Where does the processing actually happen?
- In this tab. The file is read locally, converted or edited locally, and handed back as a download — no copy is sent to a server, so there is nothing for anyone to breach or keep.
- Will it work on a phone?
- Yes. The layout adapts to a small screen and the processing runs in the mobile browser, so a photo or a downloaded document can be handled on the device it arrived on.
- Is this free, or free until it asks for a card?
- Free, with no upsell behind it: no account to create and no file-count quota that appears halfway through a job.