Free Barcode Generator for labels, packaging and proofs
Pick a barcode format, enter a value and download print-ready artwork with check digit validation.
Create your barcode
ValidateWhen to use a barcode generator
Barcode pages should be careful: people may be preparing real packaging. This generator creates the symbol artwork. Retail numbers come from GS1, book identifiers from ISBN agencies and internal codes from your own systems.
Pick the format before the artwork
Barcode work starts with the number system, not the visual style.
- Confirm whether you need EAN, UPC, Code 128 or another format.
- Use official identifiers when the barcode is for retail.
- Print a test label and scan it with the target device.
A barcode that looks clean can still be wrong for the job.
Create barcode artwork
- Choose the barcode format your scanner, label system, retailer, warehouse or document workflow expects.
- Enter the barcode value and read any format, length or digit warning before downloading.
- Use SVG for design and label software, PNG for quick tests and PDF for a simple print proof.
- Print one sample at final size and scan it with the scanner or app that will be used in the real workflow.
- Confirm that any retail number, ISBN or GS1 value is officially assigned before using it commercially.
Where generated barcodes fit
- Warehouse bin labels
- Library card and shelf tags
- Patient wristband workflow tests
- Parking pass or membership card proofs
- Internal SKU and asset labels
Barcode checks before printing
- Code 128 is flexible for internal labels. EAN-13 and UPC-A are retail formats. Data Matrix and PDF417 are useful for compact or data-heavy labels.
- A barcode image can look correct while the number or format is wrong, so validation matters before print.
- Keep quiet zones clear. Cropping a barcode too tightly is one of the easiest ways to make it fail.
Barcode mistakes to avoid
- Using a made-up UPC, EAN, GTIN, ISBN or GS1 value on real products.
- Choosing a barcode type because it looks familiar instead of because the scanner expects it.
- Resizing artwork in a way that makes bars too narrow or removes the quiet zone.
Barcode generator questions
Can this create official barcode numbers?
No. It creates barcode artwork from the value you enter. Retail product numbers come from GS1, book identifiers come from your national ISBN agency and internal codes come from your own inventory system.
Which barcode format should I use?
Use the format required by your workflow. Code 128 is common for internal labels, UPC-A and EAN-13 are retail formats, ITF-14 is used for cartons and Data Matrix or PDF417 fit certain 2D workflows.
What should I test before printing labels?
Check the value, format, quiet zone, print size, contrast and scanner compatibility. Always scan a printed sample.
What is the difference between Code 128 and Code 39?
Code 128 is more compact and handles a wider range of characters, so it is usually better for modern internal labels. Code 39 is older, wider and only worth using when a legacy scanner or system requires it.
Should I use a different barcode for retail products and internal inventory?
Yes. Retail products sold in stores need UPC-A or EAN-13 barcodes assigned through GS1. For internal warehouse labels, asset tags or picking tickets that never reach a checkout counter, Code 128 or Code 39 works fine with your own numbering system.
Can I create my own UPC number without registering anywhere?
For internal tracking, you can use any numbering system you want. But if the barcode will appear on a product sold in stores or on Amazon, you need an official UPC from GS1. Third-party resold UPC numbers are risky because major retailers check the GS1 database.
How do I know which barcode type my scanner can read?
Check your scanner's spec sheet or manual for supported symbologies. Most modern handheld scanners read Code 128, UPC-A, EAN-13 and QR codes. Older or basic scanners may only support Code 39 or a limited set.
More tools for barcode labels
Code 128 Barcode Generator
Create Code 128 barcodes for inventory, SKU labels and shipping references.
EAN-13 Barcode Generator
Generate EAN-13 barcode artwork for retail products, with check digit validation built in.
UPC-A Barcode Generator
Generate UPC-A barcode artwork for US and Canadian retail product labels.
Code 39 Barcode Generator
Create Code 39 barcode artwork for simple alphanumeric labels.