100% Free · No Signup · No Data Collection

Stop guessing.
Start calculating.

Free tools for cross-border sellers sourcing from China.
Profit margins, shipping costs, batch analysis — before you commit.

Explore Tools View on GitHub
3
FREE TOOLS
7
MARKETS
6
PLATFORMS
15
COUNTRIES

Your Cross-Border Toolkit

Everything you need to evaluate products before committing

CHROME EXTENSION
SourceCalc
Calculate profit margins directly on 1688.com product pages. Auto-detects prices, calculates the full cost chain.
  • Auto price detection on 1688
  • Shipping + customs + platform fees
  • 7 markets, 6 platforms
  • Bilingual (EN/CN)
Get Extension →
WEB APP
BulkCalc
Evaluate multiple products at once. Paste your product list, see all profit margins instantly.
  • Batch calculate from CSV/paste
  • Sort by margin, ROI, profit
  • Export results to CSV
  • Real-time exchange rates
Open BulkCalc →
WEB APP
ShipCalc
Estimate shipping costs from China to 15+ countries. Compare sea, air, express, and rail freight.
  • 6 Chinese ports, 15 countries
  • 5 shipping methods compared
  • Volumetric weight calculation
  • Smart shipping tips
Open ShipCalc →

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