LESU Free Tools
Free offline web tools, all processing runs locally on your browser, no files uploaded to any server.
Only files downloaded from lesu66.com are official versions. Offline HTML files shared externally may be tampered with.
外贸工具合集
A curated collection of handy foreign-trade conversion and lookup tools — all run offline in your browser.
Image Compressor
Compress JPG, PNG and WebP images right inside your browser. No upload, no quality loss, fully private.
Container Load Calculator
Calculate container loading — volume, weight and box fit for LCL/FCL shipments.
Proforma Invoice Generator
Generate standard offline proforma invoice PDF for foreign trade.
Quotation Generator
Create offline business quotation PDF for foreign trade negotiation.
Packing List Generator
Create offline export packing list for shipment and customs clearance.
Commercial Invoice Generator
Generate standard offline commercial invoice PDF for foreign trade shipment and customs.
Freight Calculator
Estimate international freight cost — air, sea and express — by weight, volume and route.
Currency Converter
Convert between major currencies with up-to-date exchange rates. Free, offline, instant.
Unit Converter
Convert length, weight, volume, temperature and more units instantly. Free, offline, no install.
Bill of Lading Generator
Create a clean, printable Bill of Lading (B/L) for sea freight shipments — offline, ready to fill.
Certificate of Origin Generator
Generate a standard Certificate of Origin (C/O) for customs and trade compliance — offline, printable.
Shipping Mark Generator
Create clean shipping marks (carton labels / 唛头) for export cartons — free, offline, instant download.
Beneficiary Certificate Generator
Generate a beneficiary certificate for letter-of-credit and trade-finance documents — free, offline, printable.
Shipping Advice Generator
Create a shipping advice (装船通知) to notify the buyer/consignee of shipment details — free, offline, printable.
Insurance Calculator
Estimate CIF/insurance premium with mark-up, rate and FX conversion — free, offline, printable.
Pallet Calculator
Calculate cartons per pallet, layer stacking and total pallets needed for shipments — free, offline, printable.
Amount in Words
Convert numeric amounts into English words (SAY … ONLY) for invoices and L/C — free, offline, multi-currency.
Box Template Generator
Design carton die-cut / box templates with presets, dimensions and export to PNG or PDF — free, offline, printable.
Packaging Color Card Generator
Create packaging color sample cards with swatches and export to PNG or PDF — free, offline, printable.
Stamp Image Generator
Generate circular, elliptical and square company seals plus personalized name seals with custom text, color and star — export transparent PNG, free, offline.
More Tools Coming Soon
We are building additional free offline tools. Check back later.
More Tools Coming Soon
We are building additional free offline tools. Check back later.
More Tools Coming Soon
We are building additional free offline tools. Check back later.