SquareOptimizer

About

SquareOptimizer compresses every image on your Squarespace site in one click, directly inside your Squarespace editor. No downloading files. No re-uploading. No repositioning anything on your pages.

How it works:

Open your Squarespace editor, click the SquareOptimizer icon in your browser toolbar, and hit Scan. The extension finds every image across your entire site automatically. Pages, product listings, blog posts, portfolio, gallery blocks. Everything.
Once the scan is complete, select all images or pick specific ones. Set your target file size. Hit Optimize once. Every selected image is compressed and replaced in place, automatically, one after another. When it finishes, your site is faster and nothing on your pages has moved.

What makes SquareOptimizer different:

Every other image optimization guide tells you to compress images before uploading. That helps for new sites. It does nothing for the hundreds of images already on your live Squarespace site uploaded from a phone or stock site at 4 to 8 MB each.
SquareOptimizer fixes images already on your site. No other tool does this without requiring you to manually re-upload each one.

Who it is for:

Squarespace site owners whose pages load slowly
Freelancers and agencies who build Squarespace sites for clients
Online store owners with large numbers of product images
Photographers and creatives with portfolio or gallery-heavy sites
Bloggers who have accumulated images across dozens of posts

Key features:

Scan your entire Squarespace site for free, no credits needed
Select all images across all pages in one click
Set a target file size and compress everything automatically
Live activity log showing each image as it is processed
Before and after file sizes shown for every image
One-click revert if you are not happy with a result
Download a PDF report showing total data saved across every image
Credit history and receipts in your account dashboard

Pricing:

Free: 10 image optimizations included on signup, no card required
Starter: 100 credits for $17, expires 30 days from purchase
Pro: 500 credits for $47, expires 30 days from purchase

Scanning is always free. Credits are only used when you optimize an image. Failed images never cost a credit.

Works with:
Chrome, Edge, and Brave on any Squarespace site you have editor access to. Compatible with Squarespace 7.0 and 7.1.