Calculate your real profit margin instantly when sourcing products from 1688.com.
When you browse any product page on 1688.com, SourceCalc automatically:
- Detects the product price from the page
- Shows a profit calculator panel on the right side
- Calculates: sourcing cost + shipping + customs + platform fees = real profit
- Auto price detection - reads prices directly from 1688 product pages
- 7 target markets - USA, UK, Germany, Japan, Australia, UAE, Saudi Arabia
- 6 platforms - Amazon FBA/FBM, Shopify, Temu, eBay, TikTok Shop
- Sea & air freight estimates
- Real-time exchange rates (CNY/USD)
- Bilingual UI (Chinese + English)
- Settings saved between sessions
- No data collection - all calculations run locally
- Download or clone this repo
- Open
chrome://extensions/in Chrome - Enable Developer Mode (top right)
- Click Load Unpacked → select this folder
- Open any product on 1688.com
- The profit calculator panel appears on the right
The extension injects a panel on the right side of 1688 product pages showing:
- Detected sourcing price
- Full cost breakdown (sourcing → shipping → customs → platform fees)
- Profit per unit, margin %, ROI %
- BulkCalc - Batch profit calculator for multiple products
- ShipCalc - Shipping cost estimator from China to 15+ countries
MIT