See the Real 90-Day Price Chart & Active Promo Codes While Shopping
Whenever you visit an AliExpress item page, ChartBuy displays a non-intrusive floating pill with an expandable 90-day SVG price chart, BUY NOW timing score, fake-strikethrough warning, and stackable promo code alerts.
Inline 90-Day Mini Sparkline
Click the floating pill to expand a clean 90-day SVG price curve, 90d average, and seller safety check right on the page.
Zero Price Pollution & SKU Detection
Protects historical charts from welcome-deal or regional VAT distortion using verified catalog prices while detecting your selected SKU option.
Promo Code Finder & 5 Core Editions
Alerts you whenever stackable checkout promo codes apply to the item and links directly to your native-language comparison report.
Zero Personal Data Collection
Runs strictly on public AliExpress product pages. Never accesses cookies of other sites, logins, or checkout data.
⚡ 30-Second Quick Install Guide (Chrome / Edge / Brave)
Download chartbuy-extension.zip above and extract it into any folder on your computer.
Open chrome://extensions in your browser bar and toggle ON "Developer mode" at the top right.
Select the extracted folder—done! Visit any AliExpress item page to see live 90-day price intelligence.