Uploaded May 2021 | Updated September 2026, 3 days ago

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The Square Web Payments SDK is a JavaScript browser client SDK that provides a secure buyer payment card entry method along with other secure payment methods. The SDK is the client part of the client/server Square payment solution. The SDK produces a secure one-time use payment token that your application web client sends to your backend, where it is processed as a payment with the Payments API.

To view an example of such an application, see: developer.squareup.com/docs/web-payments/take-card-payment

The Web Payments SDK supports the following payment methods:

- Card payments
- Digital Wallets: Apple Pay & Google Pay
- ACH Bank Transfer
- Gift Card

Chapters:
0:00 - Intro
0:44 - Add Web Payments SDK Script
0:57 - Initializing Web Payments SDK
1:12 - Add Credit Card Form
2:01 - Demo Credit Card Form
2:30 - ACH Payments
3:32 - Digital Wallet Payments
3:36 - Google Pay
4:36 - Apple Pay
5:04 - Gift Card Payments
5:56 - Conclusion


Web Payments SDK: developer.squareup.com/docs/web-payments/overview
Web Payments SDK Quickstart template: github.com/square/web-payments-quickstart
Web Payment SDK Showcase: square.github.io/web-payments-showcase

Square Developer Forums – developer.squareup.com/forums
Square Developer Community – https://squ.re/slack
Square Developer Twitter – twitter.com/squaredev
Square Developer Blog – developer.squareup.com/blog