upcgen.com valid
UPCGen
Free UPC, EAN, ISBN, GTIN, and FNSKU barcode generator for Amazon, Shopify, Etsy, eBay, and 50+ e-commerce platforms. Every code passes UPC/EAN check-digit validation and platform syntax checks; for retail listings on Amazon/Walmart you need a verified GS1-derived code — sold at upcgen.com/buy-upc-codes (brand-registered sellers license through GS1).
- Authority
- 46 reach 0 · trust 6 · quality 25 · freshness 15
- Tier
- listed
- llms.txt
- https://upcgen.com/llms.txt
- llms-full.txt
- https://upcgen.com/llms-full.txt
- Sections
- 4
- Links
- 136
- Size
- 27294 bytes
- Registered
- 2026-05-12
- Country
- — Publisher location unknown; CDN address excluded
- Country evidence
- No published address evidence collected yet
- Categories
- Ecommerce
- For agents
- Transactional: buying or booking an agent could carry out
- First seen
- 2026-10-23T23:10:38.374Z
- Last checked
- 2026-10-23T23:10:40.307Z
- Badge
Their llms.txt
The beginning of the file, from our validated copy saved 2026-10-23T23:10:38.379Z. Cached copy · Source on upcgen.com
# UPCGen
> Free UPC, EAN, ISBN, GTIN, and FNSKU barcode generator for Amazon, Shopify, Etsy, eBay, and 50+ e-commerce platforms. Every code passes UPC/EAN check-digit validation and platform syntax checks; for retail listings on Amazon/Walmart you need a verified GS1-derived code — sold at upcgen.com/buy-upc-codes (brand-registered sellers license through GS1).
UPCGen serves indie e-commerce sellers, Amazon FBA sellers, Shopify merchants, distributors, and developers. Generating requires a free account: the free tier provides 5 codes/day once registered. Paid plans (from $9/mo) unlock higher monthly quotas, bulk CSV export, SVG/PDF/EPS downloads, Avery label-sheet PDFs, REST API access, and team seats. Codes past plan quota bill at $0.05/code via Stripe metered billing.
Supported barcode types: UPC-A (12-digit retail), UPC-E (8-digit compressed), EAN-13 (international retail), EAN-8 (small-package retail), ISBN (books), ITF-14 (shipping cartons), Code 128 (variable-length alphanumeric), FNSKU (Amazon FBA), Data Matrix (2D high-density).
## Primary pages
- [UPCGen — Barcode Generator](https://upcgen.com/): Generate UPC-A, UPC-E, EAN-13, EAN-8, ISBN, ITF-14, Code 128, FNSKU, and Data Matrix barcodes in the browser. Free 5/day, paid plans from $9/mo.
- [Pricing & Plans](https://upcgen.com/subscribe): Starter $9/mo (100 codes), Pro $29/mo (3,000 codes + bulk CSV + SVG/PDF/EPS + Avery sheets), Business $99/mo (25,000 codes + team seats + higher API rate limits). Annual saves 17%.
- [Buy UPC Codes](https://upcgen.com/buy-upc-codes): Buy real GS1-derived UPC codes that work on Amazon (non-Brand-Registry), eBay, Etsy, Walmart, Shopify, and retail. Pricing from $5/code, instant download, includes PNG/JPG/PDF and Certificate of Authenticity.
- [API Documentation](https://upcgen.com/api-docs): REST API for programmatic barcode generation. Drops into Claude Code, ChatGPT/Codex, Cursor, openclaw, Aider, Continue, Cline, Roo Code, and any MCP-compatible AI agent. Authentication via Bearer token. Endpoints: POST /api/barcode (PNG/SVG render), POST /api/generate (random/sequential code generation, CSV/JSON output). Includes Claude + OpenAI function-calling tool definitions. Per-tier rate limits.
- [Free Barcode Tools](https://upcgen.com/tools): Hub of free utility tools: check digit calculator, GTIN converter (UPC↔EAN↔GTIN-14), ITF-14 case code generator.
- [UPC/EAN/GTIN Check Digit Calculator](https://upcgen.com/tools/check-digit-calculator): Interactive tool: compute GS1 Mod 10 check digit for UPC-A, EAN-13, EAN-8, ITF-14. Paste digits, get the check digit instantly.
- [GTIN Converter (UPC ↔ EAN ↔ GTIN-14)](https://upcgen.com/tools/gtin-converter): Convert UPC-A, EAN-13, GTIN-14 between formats. Zero-pad, drop leading zero, recompute check digit, validate input.
- [ITF-14 Case Code Generator](https://upcgen.com/tools/itf-14-generator): Build ITF-14 case codes (GTIN-14) from a UPC-A or EAN-13 plus an indicator digit (0-8). Walmart/Costco/Carrefour shipping
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| Domain | Title | Category | Country | Authority | llms.txt | llms-full.txt | Save |
|---|---|---|---|---|---|---|---|
| intellweb.ai | Intellweb | documentation Ecommerce Productivity +3 | US | 61 | ✓ | ✓ | |
| shopify.com | Shopify | transactional Ecommerce | CA | 77 | ✓ | ✓ | |
| wordpress.org | WordPress | transactional Media Ecommerce | US | 77 | ✓ | ||
| forter.com | Forter — Identity Intelligence for Digital Commerce | interface Ecommerce Cybersecurity +1 | US | 75 | ✓ | ✓ | |
| athemes.com | aThemes | documentation Ecommerce | — | 71 | ✓ | ✓ | |
| dell.com | Dell Technologies | transactional Consumer electronics Ecommerce | US | 70 | ✓ | ||
| mattel.com | Mattel Shop | transactional Ecommerce | CA | 70 | ✓ | ✓ | |
| squarespace.com | Squarespace | transactional Ecommerce | US | 69 | ✓ |
Machine-readable: GET /v1/resolve?q=upcgen.com · GET /v1/domain/upcgen.com · this page as Accept: application/json or text/markdown · MCP lookup_domain
Automatically discovered from public files. Inclusion does not imply endorsement or publisher participation.
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Claim my listing on Agent Web Map for upcgen.com:
1. POST https://agentwebmap.com/v1/sites/upcgen.com/claims and keep claim_id and claim_secret private.
2. Publish the proof: add the line "AgentWebMap ownership: <token>" (token from step 1) to https://upcgen.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/upcgen.com/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/upcgen.com).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verifyCorrections or removal requests: contact the directory.