SpeedSize AI‑Image Optimizer

We’re extremely happy with SpeedSize.

For us, image quality is critical - our products rely on sharp, detailed visuals - so we were very cautious about implementing any optimization tool. SpeedSize managed to significantly improve loading speed while keeping our images crisp and visually identical to the originals.

The difference in user experience is noticeable. Pages feel lighter, faster, and more responsive, especially on mobile. It’s one of those improvements that works quietly in the background but has a real impact.

On top of that, the team has been professional, supportive, and great to work with.

Highly recommended for any store that cares about both performance and visual excellence.

Speedsize has dramatically improved the quality and speed of my images and provided great optimization suggestions for my new site build.

We have been using SpeedSize almost 3 months from now. The quality of the product really makes a difference for us.

Also kudos to the good support and customer experience team.
Lee-Sport, Switzerland

For a luxury brand, high-quality visuals are non-negotiable, but they usually kill load speeds. Speedsize has been a total game-changer for us. We have a huge number of high-res images and videos per product, and this app keeps everything looking premium while keeping the site incredibly light.
A huge relief for us was the colour accuracy—unlike other compression services, Speedsize doesn't shift or dull colours, which was a major concern for us. The mobile experience is now flawless, with pages snapping into place instantly. The icing on the cake is that every team member has been incredibly responsive and accommodating to our needs. I couldn’t have asked for a better experience!

We've had a good experience with Speedsize. Out store has a large number of high quality product images and we were experiencing issues with the site speed due to it. Implementing their tool did exactly what they advertised: greatly increased the speed of our website (namely LCP) to good levels, reducing the size of our images and videos without compromising quality at all.

We’d been stuck in Shopify’s “Moderate” speed range for a long time. SpeedSize made an immediate difference. Our LCP improved and we moved into the “Good” category, and the site feels noticeably faster. Their team has also been proactive about auditing our store and recommending other optimizations beyond their product, and those suggestions have been valuable.

SpeedSize have been great. Very smooth implementation and set-up. And very helpful since. The improvement to both resource load duration and Time to First Byte was immediate. Happy to recommend.

Great support—they respond quickly and are a pleasure to work with. They helped speed up our site by optimizing images and videos, and now we don’t have to worry about managing image performance ourselves. SpeedSize takes that completely off our plate.

We have had a great experience working with Speedsize. The insights are so helpful towards making our website more efficient and effective. Highly recommend.

Great videos optimization and support. Videos are much more faster than before we implement it.