Images are usually the heaviest part of a page

Compress Images for Website Speed

Images are usually the heaviest part of a page. Compress them to load faster and score better on speed tests.

Private processing No signup

Drop your image here

or choose a file from your device — processed locally, nothing is uploaded

JPG · PNG · WEBP
Your images stay on your device.
How small does it need to be?

We try WebP and JPG (or WebP/PNG if your image has transparency), search for the best quality that fits, and only shrink dimensions if quality alone can't get there.

Why it matters

Page speed affects both visitors and search rankings. Tools such as PageSpeed Insights often flag oversized images as the main fix, and a few hundred KB saved per image adds up quickly.

What size to aim for

Aim for 100–200KB for content images and under 300KB for large hero images. Resize to the displayed width first, and consider WebP, which is usually smaller than JPG at similar quality.

Quick tips

  • Resize to the size you will actually display
  • Compress to the limit that suits the use
  • Keep your originals
  • Use WebP when your site supports it

Why images decide page speed

On many pages the largest image is the element that sets Largest Contentful Paint, one of Google's Core Web Vitals, where 2.5 seconds or less counts as good. Shrinking that one image often helps more than any other change. If PageSpeed Insights flagged your formats, see Fix "Serve images in next-gen formats".

Frequently asked questions

How small should the images be?
Roughly 100–200KB for page images and about 1MB for email. Smaller is faster, but check the photo still looks clear.
Will I lose quality?
A little, mostly invisible at normal viewing sizes. The tool keeps the best quality that fits your target.
Is it free and private?
Yes. It runs in your browser and does not upload your files.