Barcode Generator: Create Barcodes Online | Free Tool

A Code 128 is the most versatile. EAN-13 is standard for retail products. UPC-A is used in North America.

A Yes, the generated barcodes are free to use for any purpose including commercial use.

A It depends on the format. Code 128 supports any length, while EAN-13 requires exactly 13 digits.

A Yes.

A To ensure your generated barcode is scannable, always download the high-resolution PNG image directly from our tool. Avoid significant resizing, especially shrinking, which can lead to blurriness. Maintain excellent contrast between the dark bars and light background. Crucially, ensure there are clear 'quiet zones' – ample white space – on both sides of the barcode. A quick test with a smartphone barcode scanner app can confirm its readability before printing or deployment.

A Yes, you can generate ISBN barcodes using the EAN-13 format within our tool. ISBNs for books published after January 2007 are 13 digits and compatible with EAN-13. Simply input your 13-digit ISBN (excluding hyphens) into the EAN-13 generator. Ensure you include the correct 978 or 979 prefix. Always verify the generated barcode with a scanner before printing to ensure accuracy for your publication.

A If you enter too many characters, the generator will usually truncate the input to fit the specific barcode's requirements. For example, an EAN-13 format only allows 13 digits; any additional numbers you type will be ignored. It's best to double-check your data before generating to avoid unexpected results.

A No, you can't change the bar colors in this generator. Barcode scanners rely on high contrast between dark bars and a white background. Colored or gradient bars often fail to scan properly. Stick with black bars on a white background for reliable results. If you're preparing barcodes for a print brochure, test a sample with your printer first to confirm the contrast holds up.