Most photos straight from a phone or camera are far bigger than they need to be for a screen. Compressing re-encodes the image with settings chosen for size, so it loads faster and fits under upload limits, while looking the same at normal viewing size.
Will my image look worse?
For JPG and WebP, you control the trade-off with a quality setting from 1 to 100. Around 75 to 85 is the usual sweet spot for photos: the file shrinks a lot and differences are hard to see without zooming in. Below about 60, you start to see blocky patches in smooth areas such as skies, and halos around sharp edges. Try two settings on the same photo and compare the size and the look before you settle on one.
Compressing an already compressed JPG again always loses a little more. Start from the original whenever you can.
Why did my PNG barely shrink?
PNG is lossless, so compression can only find a more efficient way to store the same pixels. That gives modest savings. PNG is the right format for screenshots, logos and graphics with flat colour or transparency. For photos saved as PNG, converting to JPG or WebP is what makes them dramatically smaller; see Convert Image or Image to WebP.
Does it remove metadata?
Yes. Compression drops EXIF data such as camera model and GPS location, which also saves a few kilobytes. If you need to keep the date taken, keep your original.
Are my files uploaded?
On this page, compression runs in your browser, using the same open-source JPG, WebP and PNG encoders that desktop tools rely on. Your images are never uploaded, so the files never leave your device.
How big can the file be?
Free, with no account and no daily cap, for images up to 50 MB. For a web shop or a blog, the pipeline builder can resize, compress and rename a whole folder of photos in one run. You can try a pipeline on up to 3 files for free; larger runs need Pro or credits and are processed on our server.
How to compress images
- Drop your JPG, PNG, WebP or other images onto the drop zone.
- Set the quality, or keep the default of 75.
- Click Compress.
- Download the compressed image, or all of them as a ZIP.
FAQ
What quality setting should I use?
75 to 85 for photos on websites and email. 90 or higher when the image may be edited or printed later.
Why is the compressed file bigger than the original?
The original was already heavily compressed, or it was saved at a lower quality than you chose. Keep the original in that case.
Does compressing change the dimensions?
No. The width and height stay the same. To reduce dimensions as well, use Resize Image.
Can I compress GIFs?
Still GIFs, BMPs and TIFFs are accepted. For animations, a short video is usually far smaller than a GIF.