Namso Gen Extension is a powerful tool for developers and QA professionals seeking to generate Luhn-valid test data seamlessly. Operating as a Chrome add-on, it provides an instant overlay UI that allows users to create and copy valid payment details, including Card Numbers, CVV, and Expiry Dates, without the need to switch tabs. The extension ensures 100% Luhn compliance, making it suitable for testing across various payment gateways like Stripe and Braintree. Its privacy-first design guarantees no data storage or external permissions are required, enhancing security during development.

The Namso Gen Extension features custom BIN injection for simulating specific card types and automatically generates the necessary CID for American Express cards. Its zero latency execution means that the generation process is instantaneous and does not rely on an internet connection. Ideal for full-stack developers, QA engineers, and security researchers, this tool simplifies the testing of e-commerce flows and input validations while maintaining a focus on data security.