Make photos and pictures smaller for email, websites and storage. This free image compressor works in your browser, so your images never leave your device. Add one image or a batch, choose the quality and size, and download the smaller files.
How to Compress an Image Online
- Add your images. Drag them into the box above, or click it and choose files from your phone or computer.
- Pick the output format. JPG works almost everywhere. WEBP usually gives smaller files for websites.
- Set the quality. Around 80 to 90 percent keeps the picture looking the same in most cases.
- Set a maximum width or height (optional). Reducing the dimensions often saves more than compression alone. The picture keeps its proportions.
- Click Compress. Download each file on its own, or press Download all to get one ZIP file.
Tips for Smaller Image Files
Resize for the place the picture will be used. Phone photos are often 4000 pixels wide, while most websites only need 1200 to 1600 pixels. Enter a width in the box and compress at 80 to 90 percent quality. Compare the result with the original and stop once the file is small enough, instead of choosing the strongest setting.
Saving the picture again re-draws it, which also removes metadata such as camera details and location from the new file. Your original file is not changed, so keep it if you may need it later.
Frequently Asked Questions
Are my photos uploaded to a server?
No. The compression runs inside your browser on your own device. Your images are never sent to this website or to anyone else.
Will compressing reduce quality?
JPG and WEBP are lossy formats, so some detail is removed. At around 80 to 90 percent the difference is hard to see. PNG is lossless, so it keeps every pixel, but it only gets smaller if you also reduce the width or height.
Why is my compressed file sometimes bigger?
If a picture is already well compressed, saving it again, or saving a JPG as PNG, can make it larger. Lower the quality, reduce the width, or use WEBP, and keep your original if the new file is not smaller.
Can I compress iPhone HEIC photos?
Open this page in Safari on your iPhone or Mac, which can read HEIC files. Some other browsers cannot open HEIC photos. The result is saved as JPG, WEBP or PNG.
Does it keep transparent backgrounds?
PNG and WEBP keep transparency. JPG does not support it, so transparent areas are filled with white.
Is there a limit on how many images I can compress?
There is no limit set by this tool. Very large batches depend on your device memory, so process them in smaller groups if your browser slows down.