Compress images

How to compress an image

Add your photos, choose how much quality to keep, and download the smaller versions. The saving is shown for each file and for the batch, so you can see whether you are under the limit before you download anything.

Everything runs in your browser. Photos are never uploaded, which is why this works with the network disconnected once the page has loaded.

Choosing a quality setting

Compression works by discarding detail that the eye is least sensitive to, so the right setting depends on where the image is going.

For email attachments and upload forms, the middle setting is almost always enough and the difference is hard to see on a screen. For images going onto a website, the same setting is a good default. For anything being printed, or a photo you may want to crop into later, keep the highest setting and accept a larger file.

Screenshots, diagrams and logos with hard edges show compression sooner than photographs do. If text in an image starts to look fuzzy, move the setting up.

Size, not dimensions

This tool changes how much space a picture takes up, not how large it is in pixels. If what you actually need is an image of an exact width and height — for a profile picture, a product listing, or a form that demands 600 by 800 — resizing is the tool for that, and it is one click away in the related tools below.

Location data is removed

Phone photos carry an EXIF block holding the GPS coordinates where the picture was taken, the camera model, and the date and time. Compressing rewrites the image and that block is not carried over. If you are posting a photo publicly, this is worth knowing: it removes information most people do not realise they are sharing.

Nothing is uploaded

The compression runs on your own device using your browser’s built-in image handling. No copy of the photo is sent anywhere, so there is no server holding your pictures and nothing to delete afterwards.

How much smaller will my photos get?

For a typical phone photo, between half and a tenth of the original, depending on the quality setting. The saving is shown per file so you can try a setting and see the result before downloading.

Will anyone notice the difference?

At the setting meant for email and web use, rarely. Compression discards detail your eye is least sensitive to, so photographs hold up well, while sharp-edged graphics and screenshots show it sooner.

What happens to location data in my photos?

It is removed. Compressing rewrites the image, and the EXIF block containing GPS coordinates, camera model and timestamp is not carried over.

Why did my PNG not get smaller?

PNG compression is lossless, so re-saving it saves almost nothing. Converting the image to WebP instead usually gives a large reduction while keeping transparency.