How to use Compress image
- 1. Choose your imagesClick Choose files or drag JPG, PNG or WebP images onto the box.
- 2. Click ConvertPick a Compression level, then click Convert.
- 3. DownloadDownload the images one at a time or all together as a ZIP.
Compression levels
Balanced is the default and suits most images. Light keeps the most detail. Strong makes the smallest files.
| JPG and WebP | PNG | |
|---|---|---|
| Light | Quality 85, hard to tell from the original | Lossless, only metadata is removed |
| Balanced | Quality 72 | 256 colours, dithered |
| Strong | Quality 55, smallest with some softening | 64 colours, fine for simple graphics |
How much smaller
It depends on the image. Phone photos usually shrink by 50 to 80% at Balanced with no visible difference. PNG screenshots and graphics often lose 60 to 80% of their size. Images that were already compressed, like most pictures saved from websites, shrink less.
If a file can't be made smaller, you get the original back. Its metadata is still removed unless you chose Keep. You never download a bigger file.
Other options
- Max size limits the longest side of the image in pixels. A 12-megapixel photo is about 4000 pixels wide. At 1920 px the file often drops by another 70% and still looks sharp on any screen.
- Format changes the file type. WebP is 25 to 35% smaller than JPG at the same quality and works in every current browser. Photos saved as PNG get much smaller as JPG or WebP.
- Metadata is set to Remove by default. This deletes the GPS location, camera model and date taken. Choose Keep to leave them in.
- To get under a fixed limit like 100 KB, use Compress image to 100 KB.
Privacy
Compression runs in your browser. Your images are not uploaded to a server.
Frequently asked questions
Can I compress an image without losing quality?
Mostly. Light keeps JPG and WebP images visually identical and makes PNGs smaller without changing a pixel. Balanced is also hard to tell from the original at normal viewing size.
Can I compress many images at once?
Yes. Add as many files as you like, click Convert and download them all as one ZIP.
Why is my PNG still large?
Photos don't suit PNG. Set Format to JPG or WebP for a much smaller file. For screenshots and graphics, Strong reduces PNGs to 64 colours.
Does it remove location and camera data?
Yes, by default. GPS location, camera model and date taken are removed. Set Metadata to Keep if you need them.
Can compressing make a file bigger?
No. If the compressed file would be bigger, you get the original back.
Which formats can I compress?
JPG, including JPEG and JFIF, plus PNG and WebP. For iPhone HEIC photos, convert them to JPG first.