Free image compressor
Choose your pictures, pick a quality (75 is a good start) and see each file's new size straight away. Download one by one or all in a zip. Nothing leaves your device.
Free, no sign-up. It runs in your browser: your files and text never leave your device.
Why compress images?
Big pictures slow a website down, fill an email attachment limit and eat a visitor's mobile data. A photo straight from a phone is often 3 to 8 MB; after compression it can be under 500 KB with no difference you can see on a screen.
JPG and WebP shrink a picture by dropping detail the eye rarely notices, and the quality slider decides how much. PNG is lossless, so it barely shrinks: for photos, save as JPG or WebP; for logos and screenshots with flat colours, PNG is fine. Limiting the width to what the page actually shows (1080 to 1600 pixels for most uses) saves the most.
How to compress an image
- Choose your pictures or drop them on the box.
- Set the quality. Start at 75 and lower it until you start to see a difference, then go back a step.
- Optionally limit the width, and choose JPG or WebP for the smallest files.
- Check the before and after sizes and download the results, or all of them as a zip.
Questions people ask
How much can a JPG be compressed?
Photos can usually drop to a quarter or less of their size at quality 75 with no visible change on a screen. The savings depend on the picture.
Is WebP smaller than JPG?
Usually yes: often around a quarter to a third smaller at similar quality. All current browsers show WebP, but a few older apps and print services do not accept it.
Why did my PNG hardly get smaller?
PNG is a lossless format, so it keeps every pixel. To make a photo much smaller, save it as JPG or WebP instead.
Does compressing remove the photo's location data?
Yes. The picture is redrawn and saved as a new file, so the camera and location information stored in the original is not carried over.
Are my pictures uploaded anywhere?
No. Everything happens inside your browser on your own device. Your pictures are never sent to a server, so it also works for private photos.