MSMuhammad Shahid

Free tool · runs in your browser

Image compressor

Make images smaller for the web, email and upload forms, in batches, with control over quality.

Quick answer

Choose your images, set the quality and press Compress to see the size before and after. A quality of 70 to 80 usually looks the same to the eye at a far smaller size. PNG is lossless, so save it as WebP or JPG for real savings. You can also shrink the longest side. Everything runs in your browser, with nothing uploaded.

How to use it

  1. Choose your images. One or many: JPG, PNG or WebP.
  2. Set the quality. Start at 70, and optionally choose a format and maximum size.
  3. Compress and download. Compare the sizes, then save each image or a ZIP.

Example

A phone photo compressed for a web page:

Input

photo.jpg: 4032 × 3024
Quality: 70, Longest side: 1600

Output

photo-compressed.jpg: 1600 × 1200
A fraction of the original size. The exact saving depends on the image.

Common errors and how to fix them

The PNG size did not change
PNG is lossless. Under "Save as", choose WebP or JPG.
The transparent background turned white
JPG has no transparency. Choose WebP to keep it.
Edges look blocky
The quality is too low. Raise it to 75 or more.

Frequently asked questions

What quality should I use?

70 to 80 for websites and sharing, which usually looks the same as the original. Go lower only for tiny previews, and compare before you use the result.

Why did my PNG not get smaller?

PNG is lossless, so the quality slider has no effect. Choose WebP or JPG under "Save as". WebP keeps transparency, while JPG does not.

What is the best image format for the web?

WebP suits most images: Google reports lossy WebP files are about 25 to 34% smaller than comparable JPEGs. All current major browsers show it.

Does compressing reduce the picture's dimensions?

No, unless you set a longest side. Reducing dimensions saves the most: a 4000-pixel photo is rarely needed on a web page.

How small should images be for a website?

Aim for under 200 KB for large images, and much less for small ones. Google's Core Web Vitals reward fast-loading main images.

Is metadata removed?

Yes. Saving through the browser removes EXIF data, including camera details and GPS location, which is good for privacy.

Are my images uploaded?

No. They are compressed by your own browser and never leave your device.

Why did a file come out no smaller?

It was probably already compressed. Compressing again at higher quality can make it larger, in which case the tool keeps your original.

Should I resize before compressing?

Yes, if the image is larger than it needs to be. Use the image resizer first, then compress, as fewer pixels save the most.

How do I change the format as well?

Choose it under "Save as" here. For formats beyond JPG and WebP, use the image converter.

Sources

Related

More tools in this group

Guides and apps

By Muhammad Shahid. Last updated .