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UPCgen vs 4XL Size

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

UPCgen compared with 4XL Size
DetailUPCgen logo UPCgen4XL Size logo 4XL Size
What it doesFree barcode generator for UPC, EAN, ISBN, and other retail barcodes Size chart converter and comparison tool for large clothing sizes
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Free
PricingFree: 5 codes per day. Starter $9/month (100 codes/month, PNG download, all 9 barcode types, API access). Pro $29/month (3,000 codes/month, bulk CSV, SVG/PDF/EPS exports, Avery+FBA label sheets, API access). Business $99/month (25,000 codes/month, everything in Pro, 5 team seats, priority support). Not given
Key features
  • Generate UPC, EAN-13, EAN-8, UPC-E, ISBN, ITF-14, Code 128, FNSKU, and Data Matrix barcodes
  • Valid check digits passing GS1 standard validation
  • Bulk generation up to 10,000 codes at once
  • Export to CSV, PNG, PDF, SVG, and EPS formats
  • Avery and FBA label sheets
  • REST API for developers
  • Bulk CSV upload and download
  • Free registration with no card required
  • Platform compliance for Amazon, Shopify, Etsy, eBay, Walmart
  • Size chart lookup by brand (Nike, adidas, Strongsize, Calvin Klein, Tommy Hilfiger)
  • Measurement-based size finder for men and women
  • Size label conversion between US, UK and EU formats
  • Body measurement guide with step-by-step instructions
  • Comparison of the same size label across different brands
What makes it different
  • Simple, single-page interface without bloated software or confusing options
  • Valid barcodes that download cleanly in multiple professional formats
  • Supports 50+ e-commerce and retail platforms
  • Data sourced directly from official brand size charts with verified dates
  • Shows that the same label fits differently across brands
  • Measurements provided in both inches and centimeters
  • Separates men's and women's size lines to avoid confusion
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)38 −1 (down) since last checkNot checked yet no change since last check
Trust Flow (Majestic)100
Citation Flow (Majestic)305
Referring domains (Majestic)1381

4 details filled in for both companies.

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