Compress Image Online
Reduce JPG, PNG and WebP file sizes online — free, with no sign-up. See the real savings for every image before you download.
FreeNo sign-upImages stay in your browser
Drop your JPG, PNG or WebP images here
JPG, PNG or WebP • Up to 50 images
Compress Image
Reduce image file size while keeping the original dimensions.
How it works
How to Compress an Image
- 01
Upload your images
Drop or choose up to 50 JPG, PNG or WebP files.
- 02
Choose quality and apply
Set Image Quality for JPG and WebP, then press Apply or Apply All.
- 03
Review and download
Check the real file-size savings, then download one image or the whole batch as a ZIP.
The basics
Image compression, explained.
What is image compression?
Compression stores the same picture in fewer bytes by encoding the image data more efficiently or by dropping detail people rarely notice.
Lossy vs. lossless
Lossy compression (JPG, WebP here) removes some detail for much smaller files. Lossless compression (PNG) keeps every pixel, so savings are smaller.
Quality and file size
Lower quality means smaller files but more visible artifacts. Small changes near 80% often save a lot; very low values look blocky.
Compression vs. resizing
Compression keeps the width and height and changes encoding. Resizing changes the number of pixels. For big savings, you can do both.
Why some images don't shrink
Images that were already compressed, or simple PNGs, may not get smaller. Image Fixer then keeps the original and reports 0% saved.
How browser compression works
Your browser decodes the image and re-encodes it with its built-in JPG, PNG or WebP encoder. Results can vary slightly between browsers.
Good to know
Getting the balance right.
Faster websites
Smaller images load faster, which helps visitors on mobile connections and keeps pages responsive.
Ecommerce listings
Stores often show many product photos per page. Lighter files keep collections and product pages quick.
Balance quality and size
Start at 80%, check the preview, and lower the quality only while the image still looks right to you.
| Format | JPG | PNG | WebP |
|---|---|---|---|
| Compression type here | Lossy (adjustable quality) | Lossless | Lossy (adjustable quality) |
| Transparency | No | Yes | Yes |
| Typical savings | Often significant | Often small or none | Often significant |
| Best for | Photos | Graphics, logos, screenshots | Web images of all kinds |
Questions
Compress image questions
Can I compress images without resizing them?
Yes. Width and height stay exactly the same. Only the way the image data is encoded changes.
Does compression reduce image quality?
For JPG and WebP, lower quality settings remove some detail to save space; at around 80% the difference is usually hard to see. PNG is processed losslessly, so its quality does not change.
Can I compress multiple images at once?
Yes. Upload up to 50 images and press Apply All. Each image is compressed from its original file, and the batch downloads as a ZIP.
Can I compress PNG images?
Yes, but PNG is re-encoded losslessly in your browser, so savings are often small or zero. If the result is not smaller, the original file is kept.
What is a good JPEG quality setting?
70–85% is a common balance between file size and visual quality. Check the preview and the real savings shown in the tool before downloading.
Why did my image not become smaller?
Some images are already well compressed. When the new file is not smaller, Image Fixer keeps the original and shows 0% saved instead of giving you a bigger file.
Are images processed locally?
Yes. Compression happens in your browser on your own device. Your images are not uploaded to an Image Fixer server for processing.
Is the tool free?
Yes. It is free to use and does not require an account or sign-up.
Your images stay on your device.
Compression happens directly in your browser. Your images are not uploaded to an Image Fixer server.
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