How to reduce the size of a photo
File size depends on two things: the number of pixels and the amount of compression. Making a photo smaller means changing one or both. It takes three steps:
- Choose photos from your disk or drag them onto the box above. You can add several files at once.
- Set the longer side (for example 2048 px), the format and the quality. If you have a limit, enter the maximum size in KB.
- Download each file separately or all of them with one click. The file name gets a "-min" ending, so the original stays untouched.
How to reduce photo size in MB
Dimensions affect file weight the most. A 6000 × 4000 px camera photo is usually 8 to 12 MB as a JPEG. After reducing the longer side to 2048 px at about 82% quality, the result usually weighs a few hundred KB and looks almost the same on screen.
The second dial is quality. For JPEG and WEBP, lowering it from 95% to 80 to 85% shrinks the file a lot, and the difference is hard to see without zooming in. Below 60% blocky artifacts start to show, especially in smooth backgrounds and skies. If you must fit a specific limit, enter it in the "Maximum file size" field and the tool picks the quality for you.
Changing image resolution and quality
Changing resolution means changing the number of pixels. Shrinking is safe: the photo loses detail you cannot see on screen anyway. Enlarging adds no detail, it only stretches existing pixels, so this tool never enlarges photos.
Pixel count is not the same as DPI. DPI only matters in print and describes how many pixels fit in one inch of the print. For the web, email or a form, only pixels and file size count. If you are preparing a photo for print, check it with the DPI calculator or convert the size with Pixels to inches and cm.
How to reduce photo size on a phone
The tool works in your phone browser, so you do not need an app. Open this page, pick photos from your gallery and download the result. Large photos from recent phones can take a moment, because everything is processed on your device.
JPEG or WEBP
JPEG works everywhere and is the safe choice for email, forms and website uploads. At the same quality WEBP usually gives a smaller file, but not every program and form accepts it. PNG keeps transparency and has no loss, but for photographs it can be several times heavier. Pick JPEG for photos, and WEBP when page weight matters.