Free Image Compressor
This free image compressor re-saves a JPEG, PNG or WebP picture at the quality you choose and shows the file size before and after, with the percentage saved. You can also convert to WebP or cap the width. Uploads up to 5 MB are processed in memory and never stored. It suits site owners whose heavy images slow pages down.
Image Compressor
Images
About this tool
Large images are one of the most common reasons a page loads slowly, and page speed affects both visitors and search. Upload an image, choose a quality, and the tool re-encodes it. For JPEG and WebP, quality 70 to 85 usually makes the file much smaller with little visible change. Lower values save more but show blur and blocky patches, so check the result before you use it.
PNG is a lossless format, so it is saved with the strongest compression, which helps a little. Below quality 90 the tool also reduces the number of colours in the picture, which saves much more on logos and graphics but can band smooth gradients and photos. For photographs, converting to WebP or JPEG saves far more than any PNG setting. You can also set a maximum width, which is the biggest saving when a photo is much larger than it appears on the page.
Re-encoding removes metadata such as camera details and GPS location, and applies the photo's rotation. Each pass of lossy compression adds some damage, so always compress from your original file, not from an already compressed copy. Animated GIFs are not accepted. If the result is not smaller than the original, the image was already well compressed and you should keep the original.
Frequently asked questions
What quality setting should I use?
For photos, 75 to 85 is a good range: the file shrinks a lot and most people cannot see the difference on a normal screen. Go lower, around 60 to 70, for small thumbnails and backgrounds. Keep 90 or higher for images where detail matters, such as product close-ups. Always view the result before you replace the original.
Is WebP better than JPEG?
For most photos, WebP gives a smaller file at the same visible quality, and every current browser supports it. JPEG remains the safest choice for email and for software that does not open WebP files. If your goal is page speed on a website, convert photos to WebP and keep a JPEG copy of the original.
Will compression make my image blurry?
Lossy compression removes detail the eye notices least, so a moderate setting looks almost identical, while a very low setting causes blur and blocky edges. Resizing a picture to the size it is shown at, rather than serving a huge file, usually saves more space than lowering quality, with no loss you can see.
Why did my PNG barely shrink?
A PNG keeps every pixel exactly, so photos and complex graphics stay large even at maximum compression. Lower the quality setting to reduce the colour palette, which suits logos and flat graphics, or convert photographs to WebP or JPEG. Screenshots with few colours compress best.
Is my image kept on your server?
No. The file is held in memory while it is compressed, then discarded when the page finishes loading. It is not saved to disk or shared. The compressed image shown in the result exists only in that page, so download it before you leave.