What is Square?
PaymentSquare is a payment provider: Payment and point-of-sale platform. Tech Stack Detector identifies Square on any website by analysing the HTML source.
Square is a payment provider (Payment). See websites using Square ↓
How Tech Stack Detector detects Square
Square is matched from these signals during a single, ordinary page request. Each one contributes to the confidence score shown on a scan.
- Html PatternSquare Web Payments SDK
Websites using Square
No websites in our public index are known to use Square yet. Scan a site above that uses it to be the first. Your result becomes a shareable /site/… page.
Alternatives to Square
Other Payment technologies Tech Stack Detector detects: popular alternatives and related tools, most-detected first.
Compare Square
Side-by-side comparisons of Square with other Payment technologies.
Popular technologies
The technologies most often detected across all websites scanned on Tech Stack Detector.
Frequently asked questions
What is Square?
Square is a payment provider: Payment and point-of-sale platform. Tech Stack Detector identifies Square on any website by analysing the HTML source. Its official website is https://squareup.com.
How can I tell if a website uses Square?
Enter any URL into Tech Stack Detector and it reports whether Square is present, with a confidence score and the exact evidence it matched. Detection is based on the HTML source. No login or crawling of the site is required.
What are some alternatives to Square?
Other Payment technologies Tech Stack Detector detects include Stripe, PayPal, Braintree, Razorpay, Klarna and Adyen. You can compare any of them side by side with Square.
Data last updated October 20, 2026 · based on 618 recently scanned websites.