FREE TOOLS · NO SIGNUP
Practical calculators and checklists we built for our own sourcing work. Check a supplier, price an order, and see the margin before you commit — no signup, no email walls.
Updated October 2026 · Built in Yiwu · Used on every quote we send
Is this supplier worth pursuing — and does the order still make money after duty, freight and fees?
12 weighted checks on legal status, factory identity, capacity and compliance. Returns a 0–100 score, the gaps to close, and a critical-item override.
Score a supplier → Tool · Landed cost & marginModel goods, freight, duty, VAT and fees for Amazon FBA, DTC or offline retail. Includes freight estimates for Ningbo → Los Angeles and a DDP mode.
Price an order →No email required. Print them, annotate them, send them to your team.
The seven official and third-party sources, twelve checks and the red flags we look for before quoting a new supplier.
Download the checklistWhat to look at on the floor: lines, equipment, warehouse, QC records and the questions that separate a factory from a trader.
Download the checklistWe built these tools for our own buying decisions, then opened them up. If a checklist helps you avoid one bad supplier or one unprofitable product, it has done its job. If you would rather hand the work over, supplier verification is free too — send the link and we reply with a verdict within 24 hours.