Adjust image
Brighten dark photos, add contrast, boost or tone down colour, or turn pictures black and white or sepia, many at once. Your photos stay on your device.
Runs in your browser. Your files are never uploaded or stored.
Something not working, or missing an option?
How to use Adjust image
- Choose or drop one or more photos.
- Move the sliders and watch the preview.
- Select Save images. Several photos are saved together as a .zip.
Questions
Are all my photos changed the same way?
Yes. The same settings apply to every photo you add, so a whole set keeps one look.
Are my files uploaded?
No. The tool runs inside your browser, and the page is blocked from sending data anywhere. You can check by turning off your internet connection: it keeps working.
Open-source parts
- libheif-js LGPL-3.0
- UTIF.js MIT
- fflate MIT