Latest, 16 Oct 2026:31 usersMove the mouse over the chart for any month
Ratings count
monthly, 6 months
Latest, 16 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Namso Gen Extension
Namso Gen & Validator: The Official Extension for Developers
Namso Gen is the industry-leading browser toolkit designed for developers, QA engineers, and security researchers who need 100% Luhn-valid test data instantly. Stop wasting time switching between your checkout tab and clunky web generators.
Built with a Privacy-First Architecture, our extension is the only "No-Permissions" tool on the store. We don’t read your history, we don’t inject scripts into your pages, and we don’t store your data. It is 100% client-side, executing the Luhn Algorithm locally within the popup for maximum sandbox security.
🚀 Why Choose the Official Namso Extension?
* Instant Overlay UI: Generate and copy valid test details (Card Number, CVV, Expiry) via a sleek popup without leaving your active tab.
* 100% Luhn-Compliant: Every number is mathematically verified using the Mod 10 (Luhn) checksum formula, ensuring it passes frontend validation on any gateway.
* Stripe & Braintree Optimized: Specifically tuned for modern gateways. Test 3D Secure redirects, validation error styling, and form submission logic with ease.
* Custom BIN Injection: Manually enter 6-digit or 8-digit Bank Identification Numbers (BIN) to simulate specific issuers or card types (Visa, Mastercard, Amex, Discover).
* Amex 4-Digit Smart Detect: Automatically generates the required 4-digit CID for American Express BINs (34/37) so your tests never fail on CVV length.
* Zero Latency Execution: Native local processing means 0ms delay. No external API calls are made, and no internet connection is required for core generation.
🛠️ Technical Specifications
Feature Standard Web Tools Namso Official Extension
Workflow Clunky Tab Switching Instant Overlay Popup
Data Security Potential Server Logs 100% Isolated Client-Side
Permissions Requires History/Tabs None Required
Ads Distracting Banners Minimal & Developer-Focused
💡 How It Works
The extension mirrors the exact logic used by issuing banks to verify card structural integrity.
1. Drop & Reverse: The algorithm drops the check digit and reverses the sequence.
2. Summation: It calculates the sum of digits based on the Luhn formula.
3. Validation: It ensures the final total is divisible by 10 ($Total \pmod{10} = 0$).
🎯 Perfect For:
* Full-Stack Developers: Testing e-commerce checkout flows and payment integrations.
* QA Engineers: Verifying UI/UX input masks and regex pattern accuracy.
* Security Researchers: Populating test databases with synthetic, non-functional data.
🔗 Connect With Us
* Web Dashboard: Namso.live
* Advanced API: Namso Generator API
* Mobile Testing: Get the Android APK
Disclaimer: Namso Gen is a developer tool for creating synthetic test data. Generated numbers are mathematically valid but financially non-functional. They cannot be used for real purchases.