All Converter Pro
Gerador de código de barras online
Gere códigos de barras imprimíveis online de graça: Code 128 para uso interno, EAN-13 e UPC para produtos de varejo. Baixe como imagem nítida para etiquetas e embalagens.
Sobre a ferramenta Gerador de código de barras
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.
Como usar Gerador de código de barras
- Abra a ferramenta e adicione seu arquivo, texto ou valores.
- Revise as opções disponíveis, como intervalo de páginas, formato de saída, qualidade, senha ou idioma.
- Inicie o processo e mantenha a janela do navegador aberta até terminar.
- Baixe o resultado e continue com uma ferramenta relacionada, se precisar.
Dicas úteis
- Para PDFs digitalizados, as ferramentas com suporte a OCR executam o reconhecimento de texto automaticamente sempre que possível.
- Para arquivos grandes, use as ferramentas de compressão antes de compartilhar por e-mail ou enviar para portais.
- Para melhores resultados, envie arquivos limpos com a extensão correta e evite documentos corrompidos.
Perguntas frequentes
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.