Collection: Squarespace Marketing & Popup Plugins

Squarespace has no native countdown timer, which leaves sales, launches and event pages with static text where the urgency should be. This $19 plugin from SQSPThemes adds a real-time countdown to any page, on both Squarespace 7.0 and 7.1, and the detail that makes it better than an embedded widget is what happens when the clock hits zero: you can hide the timer, open a lightbox, redirect to another page, replace it with text, or add text before or after it. That means an expired flash sale can automatically send visitors to the next offer instead of showing a dead timer. You can also run it on a fixed duration instead of an end date. Setup is copy-and-paste with a video walkthrough, and the styling is easy to match to your template.See what else made our roundup of the best Squarespace plugins in 2026.

First, the important part: this is a $10 add-on, not a standalone plugin. It extends SQSPThemes' Lightbox Anything plugin ($59), which must already be installed on your site for this add-on to work. What it adds is a promotional popup: sale announcements, launch offers or seasonal promos built from your own Squarespace content and styled through the parent plugin's CSS generator, so it looks like part of your site rather than a bolted-on marketing tool. There is a dedicated video tutorial for the setup, the vendor's support responds within 24 hours, and if you want the full set, a bundle combines the Promo, Upsell, Gate and Tooltip add-ons.

Like the other Lightbox Anything add-ons, start with the essential fact: this is a $10 extension that requires the parent Squarespace Lightbox Anything plugin ($59) installed on your site. What it adds is a lightbox upsell for your product pages: once configured, it displays related products, services or upgrades in a popup, encouraging customers toward an additional purchase at exactly the moment they are already buying. Because it runs on the parent plugin's engine, the upsell is built from your own Squarespace content and styled with the same CSS generator, so it reads as part of your store rather than an intrusive ad. For most Squarespace stores this is the cheapest functioning upsell mechanism available.

This bundle packages all four add-ons for SQSPThemes' Lightbox Anything plugin: Upsell (product page upsells), Promo (promotional popups), Gate (age gates) and Tooltip. The non-negotiable requirement applies to the whole set: every add-on needs the parent Squarespace Lightbox Anything plugin ($59) installed on your site, and none of them functions without it. The value case is unusually clear: bought individually the four add-ons total $45, while the vendor prices the bundle below the cost of even two of them, so if you want more than one add-on, the bundle is the obvious buy. All four are built from your own Squarespace content and styled through the parent plugin's CSS generator, with the vendor's 24-hour support behind the lot.