All Converter Pro
在线 条形码生成器
在线免费生成可打印的条形码:内部使用的 Code 128,零售商品的 EAN-13 和 UPC。下载为适用于标签和包装的清晰图片。
关于此 条形码生成器 工具
The barcode generator creates standard, scanner-readable barcodes from a number or text and gives you a crisp image to download for labels, packaging, price tags and inventory systems. Different jobs need different symbologies: Code 128 encodes letters and numbers and is the usual choice for internal inventory, asset tags and shipping labels; EAN-13 and UPC-A are the retail formats scanned at checkout tills worldwide. An important honest note for retail sellers: generating an EAN/UPC image is free, but the number inside it must be officially assigned to your product through GS1 - printing a made-up retail number will collide with real products in store databases. For purely internal use, any numbering scheme you invent is fine.
如何使用 条形码生成器
- 打开工具并添加您的文件、文字或数值。
- 检查可用选项,例如页面范围、输出格式、质量、密码或语言。
- 开始处理,并在完成前保持浏览器窗口打开。
- 下载结果,如有需要可继续使用相关工具。
实用提示
- 对于扫描的 PDF,支持 OCR 的工具会尽可能自动运行文字识别。
- 对于大文件,在通过邮件分享或上传到门户网站之前,请使用压缩工具。
- 为获得最佳效果,请上传扩展名正确的干净文件,避免使用损坏的文档。
常见问题
Which barcode type should I choose?
Code 128 for anything internal - inventory, assets, shipping, membership cards - because it encodes both letters and numbers compactly. EAN-13 (worldwide) or UPC-A (North America) only for retail products scanned at checkout.
Can I just make up an EAN or UPC number for my product?
Not for retail sale. Retail barcode numbers are globally assigned through GS1; an invented number can collide with existing products at the till. For internal-only use, any number you choose works fine.
What is the difference between a barcode and a QR code?
A 1D barcode holds a short number or code and needs a line-of-sight laser or camera scan - ideal for tills and warehouses. A QR code holds much more data (like a full URL) and is designed for phone cameras. For linking people to a website, use the QR Code Generator instead.
Will the barcode scan reliably when printed?
Yes, if printed sharply at sufficient size with dark bars on a light background. Avoid stretching the image, low-contrast colors, and glossy laminate glare; always test with a real scanner before mass printing.
Can it encode letters as well as numbers?
Code 128 encodes letters, numbers and common symbols. EAN and UPC are numeric-only fixed-length retail formats.
Is the generator free for business use?
Yes - unlimited barcodes for labels, inventory and internal systems, free with no account.