Short Answer:
Yes, hundreds, if not thousands, of professional web designers use Squarespace.
Longer answer
Yes, absolutely, they do. Let’s explore why:
All in one solution
Initially (25 years ago), just about all websites were set up manually, with the web designer or developer having to configure web hosting themselves. Many sites today still use that approach, but now, in 2025, options like Squarespace make things a lot easier. With Squarespace, the hosting is built in. In fact, there is no way whatsoever to manually host a Squarespace with your own hosting; you cannot do it. For designers, removing the hosting equation makes their lives significantly easier. Squarespace has 99.99% uptime, so it’s incredibly reliable. No more late evening calls from clients saying their website is down.
Javascript + CSS
Whilst you can get away with using Squarespace as a no-code tool, it can be hugely enhanced using CSS (cascading style sheets) and JavaScript. These languages are like a professional web designer's bread and butter; they are how you build websites. CSS utilises LESS, which makes things a little easier when writing code. JavaScript and CSS can be added to all pages on the site or pages of your choosing. It’s this access to JavaScript that allows huge customisation to take place within Squarespace. As a Squarespace designer in the UK I can confidently say without this access, many pro designers wouldn’t use Squarespace.
SEO
It’s very common when building a site for a small business they want to show in prominent positions on Google. Time of writing, and in the UK, Google has 93% of the search market. So then I say SEO, we can swap that out with Google. Google usage is similar across Western countries but with outliers in some large countries, such as Russia and China, which use Yandex and Baidu, respectively.
Squarespace allows you to add internal links easily (a very powerful technique in SEO), access to title tags, meta descriptions, header tags, alt tags for images, redirects, canonical tags, and all the things you need to optimise for maximum SEO effect. So SEO can be effectively done with Squarespace.
New features are regularly added
Squarespace continually adds new features and improvements to its platform. Recently, they introduced a membership option, which previously required a separate third-party solution. That would have involved setting up a subdomain and the service, which would have meant more time and hassle. Having this built-in now makes things a lot easier for those site owners who need membership options. Squarespace is constantly adding features like this.
Shop in the future?
Let’s say you want to start with a basic site of 5-15 pages, and next year, you want to introduce an online shopping or e-commerce experience to the site. Squarespace has its own shopping feature. For around £10(#15) extra a month, any Squarespace user can sell products. No different platform is needed; Squarespace can handle up to 10,000 products for sale. Enough for even serious e-commerce shops. There are many Squarespace templates that can be used with the e-commerce feature too.
Can hand off to you the client to take the reigns
Once the designer has built your Squarespace site, you get full access to it to edit. Change a headline or piece of text? It's as simple as double-clicking, typing the words and hitting save, and that’s your Squarespace site updated. The interface and Fluid Engine editor are incredibly intuitive, and you should be confident of updating all pages on your site with ease.
Conclusion
Yes, many professional designers use Squarespace, which offers access to CSS and JavaScript, allowing them to edit specific parts of the site for maximum SEO and a rich, growing feature set. It’s a solid choice for a small 5-20 page site.