EAN-13 Barcode
A barcode looks like a technical detail until a product gets rejected at the warehouse. Then it becomes urgent.
EAN-13 is the mandatory standard for products sold in Brazil and across most of the world. Thirteen digits that identify the country of origin, the manufacturer, and the product. One mistake in that sequence means product held at the distribution center, invoice rejected, or a scanner that simply won't read it on the shelf.
The quiet zone is the first critical decision. The barcode needs blank space on both sides — no text, no graphic elements, no color bleed. That space is not optional; it is part of the technical standard. Shrinking that margin to save space on packaging is the most common mistake and the one that fails audits most often.
Contrast is the second point. The optical reader reads the difference between dark bars and a light background. Yellow, gold, kraft, or any warm-toned background reduces that contrast. The standard recommendation is black bars on white. When the design doesn't allow that, the read test must happen before printing, not after.
Minimum size has a technical specification. EAN-13 at 100% scale measures 37.29mm wide by 25.93mm tall. It can safely be reduced to 80%. Below that, read error rates increase significantly.
The substrate matters. A barcode generated for offset printing on coated paper behaves differently on kraft packaging, glossy plastic, or recycled material. Ink absorption changes bar thickness, and that affects readability.
Generating the code is the beginning. Applying it with technique is what ensures it works where it needs to.
Frequently Asked Questions
What is an EAN-13 barcode?
EAN-13 is the international standard barcode used on most retail products worldwide. It contains 13 digits identifying the country of origin, manufacturer, and product. It is required for products sold in supermarkets, pharmacies, and most retail chains globally.
What size should an EAN-13 barcode be on packaging?
The standard EAN-13 size is 37.29mm wide by 25.93mm tall at 100% scale. It can safely be reduced to 80% (approximately 29.83mm × 20.74mm). Going below 80% significantly increases scan error rates and may cause product rejection at distribution centers.
Can I use this barcode generator for commercial packaging?
Yes. The barcodes generated here follow the official EAN-13 technical specifications and are suitable for use in packaging files sent to print. Always verify the final barcode with a physical scanner before approving the print run.
What file format should I download for printing?
SVG is recommended for Illustrator, Figma, and any vector workflow — it scales without quality loss. PNG works well for presentations and digital mockups. JPG is ideal for e-commerce listings and websites where file size matters.
What is the quiet zone in a barcode?
The quiet zone is the blank white space required on both sides of the barcode. It must be at least 3.63mm on each side for EAN-13. Removing or reducing this space is the most common reason barcodes fail scanner audits at warehouses and retail chains.
Does barcode color affect readability?
Yes. Optical scanners read the contrast between dark bars and a light background. Black on white is the safest combination. Avoid yellow, gold, kraft tones, or any warm background — these reduce contrast and increase read error rates. Always run a physical scan test before printing on non-standard backgrounds.