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Free tool · your photos never leave your computer

The website image optimiser.

Big photos are the most common reason small business websites are slow. Drop yours in, pick a size and format, and download web-ready files that are often a fraction of the size. It all happens on your device.

  • Free
  • No sign-up or email
  • Saves in your browser only
  • About 1 min

How to use it

  1. 1Add your imagesDrag them into the box, or tap to choose. JPG, PNG and WebP all work; you can add lots at once.
  2. 2Choose a size and formatPick what the image is for (a full-width banner, an image within a page, a product photo or a thumbnail). WebP at quality 80 suits most websites.
  3. 3Check the qualityPress "Compare" on any image and drag the slider to check it still looks sharp. Nudge the quality up if it doesn't.
  4. 4DownloadDownload images one at a time, or all together as a ZIP. Files get tidy, search-friendly names.
Where do I find…?
What size does my website need?

Most full-width banners look sharp at 1920px wide; images within a page rarely need more than 1200px. Product photos are usually 1000–1500px. If your website builder recommends a size, use that.

Can my website use WebP?

Most modern website platforms, including WordPress (since version 5.8) and Shopify, accept WebP. If yours doesn't, choose JPEG instead.

1Add your images

2Choose your settings

Images are only ever made smaller, never stretched. What size does my website need?
Format
WebP works on almost every website now. Can my website use WebP?
70–85 is the sweet spot for photos. Check with "Compare".
Describe what's in the photo; it helps Google. Leave blank to tidy the original names.

Your images

No images yet.

    Remember to add alt text when you upload: a short description of the image for people using screen readers (and for Google). You can type it next to each image and it'll be saved in the ZIP as alt-text.txt.

    Before and after
    Original image
    Optimised image

    Everything you type stays in this browser. We don't see it, store it or send it anywhere. Clear it any time with "Start again".

    Questions, answered.

    Related guidesFive quick website speed checks
    Are my photos uploaded anywhere?

    No. Everything happens in your browser, and the files never leave your device.

    Does it remove location data?

    Yes. Re-saving the image drops hidden details like the GPS location your phone may have added.

    Why do some photos look sideways?

    The tool follows your camera's rotation info, so they should come out the right way up. If one doesn't, rotate it on your computer first.

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