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Trình tạo mã vạch EAN-13

EAN-13 barcode generator: enter 12 digits to calculate check digit and generate printable barcodes for retail and inventory, with one-click copy and offline.

Cách sử dụng

Nhập 12 chữ số mã sản phẩm (tự động điền chữ số kiểm tra nếu thiếu), mã vạch được tạo theo thời gian thực, có thể nhấp chuột phải để lưu hoặc sao chép mã.

Overview

EAN-13 Barcode Generator is a generator tool that EAN-13 barcode generator: enter 12 digits to calculate check digit and generate printable barcodes for retail and inventory, with one-click copy and offline. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Raffle and random picks
  • Generate strong passwords
  • Mock data for testing
  • Create UUIDs and short strings
  • Use it to cross-check “ean13、ean-13” in reports, docs or APIs to avoid manual conversion errors

How to use

  1. 1 Choose type and quantity
  2. 2 Set length/charset rules
  3. 3 Preview and lock/exclude items
  4. 4 Copy or export CSV/TXT

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Batch export in chunks for thousands
  • Uses Crypto API
  • Mock data for testing only

FAQ

How random?
crypto.getRandomValues with system entropy.
Reproducible?
Fix seed or export log if needed.
How is EAN-13 Barcode Generator different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “ean13、ean-13” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
Tip：Tip: Bookmark this page or pin the tab; find related tools via categories and search (convert → calculate → export).
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All calculations run locally in your browser; nothing is uploaded.