Chargeguardian

Because an accidental click shouldn't cost you money. Get a quick confirmation before any purchase goes through.

ChargeGuardian watches for checkout buttons across Amazon, eBay, Walmart, Shopify, and thousands of other stores — and pauses just long enough to ask: are you sure?

How it Works:

The moment you click "Place Order," "Buy Now," or any payment button, ChargeGuardian shows you a clean confirmation screen with your payment method detected from the page. One tap to confirm, one tap to cancel. That's it.

Features:

Intercepts checkout buttons across major retailers and Shopify stores
Detects your payment method (card, PayPal, etc.) and displays it before the charge fires
Works on one-click checkouts, single-page app storefronts, and standard forms
Add trusted merchants to your whitelist — skip the prompt on sites you buy from regularly
Toggle protection on or off with one click from the toolbar
Runs entirely in your browser — no accounts, no servers, no data sent anywhere
Why it Needs Access to All Sites:

Checkout pages exist on thousands of different domains — there's no way to predict which site you'll shop on next. ChargeGuardian only activates when it detects a payment button on the current page, and never reads, stores, or transmits any of your personal or payment information.

Privacy & Permissions

No accounts required. No data collection. No analytics. Everything stays on your device. ChargeGuardian uses Chrome's local storage only to remember your settings and trusted merchant list.