Resize & compress images
Make photos ready for the web: smaller, lighter and as WebP or JPEG — right in your browser, without uploading a single image.
Optimise image
Choose an image, set width and quality, done. Everything happens on your device.
What does the image optimizer do?
Images are the biggest drag on most websites. A heavy hero image noticeably delays loading — especially on mobile.
Resize
To 1,200, 1,600, 1,920 or 2,560 px width — from content images to hero images.
Compress
Set quality from 40 to 95 and see the size before and after.
WebP or JPEG
WebP is usually a quarter to a third smaller than JPEG at the same quality.
No upload
The conversion runs in your browser. Your image never leaves your device.
Web score
Rates file size, dimensions, format and saving with a traffic light and tips.
Download instantly
Save the optimised image with a descriptive file name.
How it works
- Choose an image (JPG, PNG or WebP).
- Pick maximum width, format and quality — the image is recalculated instantly.
- Check the score, size before/after and tips.
- Download the optimised image and use it on your website.
Why it matters
Load time decides enquiries
Every extra second of load time costs visitors. The largest image often determines the LCP value Google measures.
Phones load over mobile data
A 4 MB smartphone photo is 20 times too big for a website. Mobile visitors notice right away.
Less weight, same impact
Resized and compressed properly, an image looks just as good — at a fraction of the file size.
Frequently asked questions
Is my image uploaded?
No. The tool converts the image right in your browser. Nothing is sent to us or any other server.
How large should a website image be?
Content images ideally under 150 KB, large hero images under 300–400 KB. The width need not exceed the largest display size, usually 1,200 to 1,920 px.
WebP or JPEG — which is better?
WebP is much smaller at the same quality and supported by all current browsers. JPEG is the safe choice for emails and older systems.
Is transparency kept?
With WebP, yes. JPEG has no transparency — transparent areas turn white.
Why don’t iPhone photos work?
Many iPhones save photos as HEIC, which most browsers cannot read. Set the camera to “Most Compatible” or convert the photo to JPG first.
Website too slow?
We measure the load time of your key pages, optimise images, scripts and server and make your website faster.
