How to Add Gallery Block in Squarespace 2026 Easily

Log into your Squarespace account and go to the page you want to add a gallery to. In the left-hand panel you'll see your site's full navigation tree — Home, Pages, Products & Services, Content & Memberships, and so on — with an Edit button at the top of the preview pane.

Click Edit to enter the live page editor, which is where every section and block on that page gets added or changed. This works the same whether the page already has content or is still blank.

Hover over the spot on the page where you want the gallery to sit and click the plus icon that appears. On Fluid Engine sites this opens an "Add a Section" panel rather than a simple block list, with categories running down the left side: Donations, Images, Videos, Menus, Forms, Charts, and Audio. Click Images, and a scrollable set of pre-built gallery layouts appears on the right — some styled as photo grids, others as a single large image with an overlay caption, each one a starting template you can swap images into.

Click whichever image layout best matches how many photos you're displaying and how much emphasis you want each one to get — a dense grid works well for a large set of similar shots, while a single large image with text overlay suits a smaller, more curated selection. Once inserted, clicking into the block opens the Gallery editor, a dedicated panel showing thumbnails of every image currently in the set along the left and a larger preview with editing options on the right.

Inside the Gallery editor, click the plus icon next to the word "Gallery" at the top to open a small menu with two options: Search Images, which pulls from Squarespace's built-in stock library, and Upload Images, which lets you add your own photos from your device. Upload Images is what you'll use for real product shots, portfolio work, or event photos — select your files and they're added straight into the gallery's thumbnail strip alongside whatever is already there.

Click any thumbnail in the gallery editor to select it, and the right-hand panel updates to show that image full-size with an Edit Image link above a Description field and a Link section below it. The description becomes the image's alt text and any caption your layout displays, which matters for accessibility and SEO, not just presentation. The Attach Link option lets you make an individual image clickable — useful if a photo should lead to a product page, a blog post, or an external site rather than just sitting there.

Drag thumbnails within the left-hand strip to change the order images appear in the gallery, and use the block's corner or edge handles on the page itself to resize the whole section to fit your layout. When everything looks right, click Save in the top-left corner of the editor to publish the change, or Exit if you want to back out without keeping it. The gallery block updates live on the page the moment you save, so it's worth previewing on both desktop and mobile view before you move on.