Add images to start.
How to compress an image
- Choose your images, or drop them on the box.
- Set the quality and the largest side. 75% quality and 2000 px is a good start.
- Tap Compress images, then save one image or all of them as a ZIP.
About this tool
Image Compressor makes JPG, PNG and WebP files smaller so they upload faster, fit email limits and take less space on your phone. You can see how much each image was reduced.
Set the quality and the largest side of the image. A quality of 75% and a largest side of 2000 px is a good starting point for photos. Lower the numbers if you need an even smaller file.
Compression happens in your browser, so your images are never uploaded to a server.
Tips and common problems
- For WhatsApp and email, a maximum size of 1280 px is plenty. For websites, 1280 to 2000 px is usual.
- WebP is the smallest, but a few old apps cannot open it. Choose JPG when you are not sure.
- Do not compress the same picture again and again. Start from the original each time, because every round loses a little detail.
- Need an exact width? Use the Image Resizer and then compress the result.
- Screenshots with text may look slightly softer after compressing. Use a larger maximum size for them.
Common questions
Will compressing reduce my image quality?
A little, depending on the settings. At around 75% quality most photos still look good while the file gets much smaller.
Which formats can I compress?
JPG, PNG and WebP.
Can I compress many images at once?
Yes. Select several images, compress them, and save them one by one or as a ZIP.
Are my images uploaded?
No. Everything is done on your device and your images are not sent to us.
Image Compressor in detail
How compression works
Photos contain more detail than the eye can notice. The compressor removes some of that invisible detail and stores the rest more efficiently, which can cut the file size by half or more with no obvious change. The tool shows you how much space you saved for each picture so you can judge the result.
Largest side and format
The Largest side option scales the picture so its longer edge fits the limit you choose, such as 2000 or 1280 pixels. This often saves more space than quality changes alone. Keep original leaves the size unchanged and only compresses. For the output you can pick JPG, which works everywhere, or WebP, which is usually smaller but is not supported by a few older programs.
Choosing settings for common jobs
For email and WhatsApp, 1280 or 2000 pixels in JPG is a good choice. For a website, WebP at 1280 pixels gives fast pages. For a form with a size limit, try 800 pixels and check the saved size. If the picture looks too soft, go one step up in size rather than lowering quality again.
PNG files
PNG is lossless, so compressing it without changing the format saves less. If the image is a photograph saved as PNG, converting it to JPG or WebP will shrink it dramatically. If it is a logo or screenshot with transparency, WebP keeps the transparency and is smaller than PNG.
Privacy
The pictures are compressed inside your browser and are never uploaded.
Read the guide: How to Reduce Image Size Without Losing Quality
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