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Preview of Test Cards

Test Cards by Edward Ji

Copy and prefill test card numbers and other payment methods with a single click.

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Extension Metadata

Screenshots
A side panel displays a searchable list of categorized mock credit card details, featuring lightning bolt buttons for one-click autofill into the web page's checkout form.Built-in theme support allows you to switch between light, dark, and system modes. The interface provides a consistent and comfortable look that matches your browser's appearance at any time of day.
About this extension
Streamline your payment integration testing with instant access to test card numbers for major gateways. This extension provides a convenient side panel to browse, select, and manage the test credentials you need for any payment flow without ever leaving your active tab.
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Permissions and data

Required permissions:

  • Access browser activity during navigation

Optional permissions:

  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
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Version
0.4.0
Size
210.96 KB
Last updated
4 days ago (Mar 26, 2026)
Related Categories
  • Web Development
License
MIT License
Version History
  • See all versions
Tags
  • password manager
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