Built forCS-CartAdd-ons for CS-Cart & Multi-Vendor, from an independent developer

Google Login & One Tap

by Kavio Labs · for CS-Cart & Multi-Vendor

Sign in with Google and Google One Tap, with verified tokens and safe account matching.

Tested on 2 builds Updated Nov 3, 2026 Version 1.0.0 CS-Cart, Multi-Vendor 4.17.2 – 4.21.x No core file edits
Built forCS-Cart

What it does

Google Login & One Tap adds a Continue with Google button to the sign-in pop-up, sign-in page, checkout and registration page, and the Google One Tap prompt that signs returning shoppers in from any page. Customers see their connected Google account in the profile; marketplace vendors can sign in to the vendor panel with Google. It is the Google part of Social Login Pro as a separate add-on, for stores that need only Google.

How it works

Create an OAuth client in the Google Cloud Console, paste the client ID and secret on Customers, Google sign-in and switch it on; the page shows the redirect URI and the steps. Customers click the button or accept One Tap and come back signed in. A confirmed Google address of an existing customer connects to that account; otherwise the password is asked once. Security: code flow with state, nonce and PKCE, verified ID tokens, browser binding and encrypted secrets.

Features

  • Continue with Google button in the sign-in pop-up, sign-in page, checkout and registration page
  • Google One Tap with optional automatic sign-in for returning customers
  • Verified Google ID tokens (signature, issuer, audience, expiry, nonce) and PKCE
  • Safe account matching: confirmed e-mail, or the account password asked once
  • Connected Google account in the customer profile, with disconnect
  • Vendor panel sign-in with Google (Multi-Vendor)
  • Statistics: sign-ins, new accounts, One Tap share and failure reasons
  • Import of the Google keys and connections of the built-in Social login
  • Button style, shape and position settings in brand colours
  • Moves up to Social Login Pro without reconnecting customers (keys and connections are imported)
  • Full page cache friendly; CS-Cart, CS-Cart Ultimate and Multi-Vendor, 4.17.2 to 4.21

What you get

Packagekv_google_login-1.0.0.zip, installed through Add-ons → Manage add-ons
Updates & support12 months included. Download new versions from your account and install them in Add-ons → Manage add-ons or the Upgrade Center.
License1 production installation. Staging, dev and localhost are free and unlimited. The add-on keeps working after the update period ends. How licensing works
Version
1.0.0
Updated
Nov 3, 2026
CS-Cart
4.17.2 – 4.21.x
Tested on
CS-Cart 4.17.2, Multi-Vendor 4.17.2
PHP
7.4 – 8.3
Core edits
None
Add-on ID
kv_google_login
Developer
Kavio Labs Software Limited

Support

Policy
Bug reports
1 business day
How-to questions
2 business days
Channel
Tickets in your account

Frequently bought together

Add a released add-on to this order and save 15% on it. It uses the same edition and store domain.

Google Login & One TapThis add-on
Social Login ProSign in with Apple, Google One Tap, Microsoft, Amazon, LinkedIn, Discord and more, with connected accounts.
$79
Login Security: 2FA & PasskeysTwo-step sign-in with authenticator apps and passkeys for admins, vendors and customers, plus passwordless sign-in.
$79
Phone OTP Login & RegistrationCustomers sign in and register with their phone number and a one-time code by SMS or WhatsApp.
$59

Buy with confidence

What stands behind your license

  • Tested builds

    This product was tested on these builds. Builds we did not test are not listed.

    • CS-Cart4.17.2
    • Multi-Vendor4.17.2
  • 12 months of updates

    Updates and support are included in the price. The product keeps working afterwards; renewing is optional.

    How licensing works
  • 30-day refund

    If it is not what you expected, tell us within 30 days and we refund the order.

    Refund policy
  • Secure checkout

    Card payments are processed by Stripe. Your card number never reaches our server.

    Ask a pre-sales question

Sold by Kavio Labs Software Limited, registered in England and Wales No. 17532441. About us

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