Barcode Generator
Create barcodes for products, books, inventory and labels. Choose from nine formats, generate one code or up to 500 at once, then export PNG, SVG or a complete ZIP.
How to Create and Print a Barcode⌄
- Choose Auto Detect or select the barcode format required by your system.
- Enter the number or text you want the barcode to contain.
- Check the live preview and confirm the detected format and check digit.
- Adjust the bar width, height, visible text and PNG resolution when needed.
- Keep Print Safe enabled for reliable contrast, quiet zones and practical bar dimensions.
- Generate the barcode, then download PNG or SVG, or open the print layout to print or save as PDF.
- For a batch, paste one value per line or import CSV or TXT, choose PNG or SVG, and download the finished ZIP.
One Barcode or an Entire Label Batch⌄
- Create Code 128, EAN-13, EAN-8, UPC-A, UPC-E, ISBN-13, Code 39, Codabar and ITF-14 in one workspace.
- Let Auto Detect suggest a suitable format from the value, or choose the standard yourself.
- Calculate missing check digits automatically and reject supplied check digits that do not match.
- Generate one barcode or process up to 500 values from pasted text, CSV or TXT.
- Export individual PNG or SVG files and collect batch results inside one ZIP archive.
- Choose 203, 300 or 600 DPI for PNG output to match different print workflows.
- Prepare A4 sheets, thermal labels or custom dimensions, then print or save the layout as PDF.
- Use Print Safe to protect contrast, bar dimensions and the clear space a scanner needs around the code.
- Keep barcode values on your device; generation does not rely on an external barcode service.
What a Barcode Generator Does—and What It Does Not⌄
Not every barcode is interchangeable. Code 128 is a practical choice when an internal identifier contains letters, numbers or both. EAN-13, EAN-8, UPC-A and UPC-E are fixed-length formats commonly encountered on retail items. ISBN-13 represents a book identifier as an EAN-compatible barcode, while ITF-14 is suited to identifiers used on outer cases and cartons. Code 39 and Codabar remain useful when an existing inventory, industrial or legacy workflow already expects them.
Voymira brings nine linear barcode formats into one workspace. You can choose a standard directly or use Auto Detect when the value already follows a recognizable structure. The preview updates before export, so you can confirm the encoded value, visible text and overall proportions instead of discovering a mistake after printing a full sheet of labels.
For formats that use a check digit, the generator handles the arithmetic for you. Enter the payload without its final check digit and Voymira adds the correct one. If you enter the complete number, the tool verifies it and warns you when the last digit does not match. This check catches a common data-entry problem, but it does not confirm that a product number has been officially assigned to your business.
A single barcode can be downloaded as PNG for everyday documents and image-based workflows, or as SVG when you want a scalable result for design and print. PNG output is available at 203, 300 and 600 DPI. Print layouts include A4, common thermal-label dimensions and a custom-size option. Print Safe keeps dark bars on a light background, protects the quiet zones and prevents settings that are likely to make a code difficult to scan.
When the job involves a list rather than one value, switch to batch mode. Paste one value per line or import CSV or TXT, review which rows are valid, and generate as many as 500 barcodes in one run. The results are collected in a ZIP, while rejected rows are kept in an error report so a bad entry does not disappear unnoticed.
One distinction matters: a barcode image and an official identifier are not the same thing. Voymira turns the value you provide into bars; it does not register or issue a GTIN, UPC, EAN or ISBN. Use a number assigned through the appropriate organization when the barcode will identify a commercial product or published book. For internal stock, shelves or assets, use an identifier structure that your own database and scanners understand. Before a large print run, print one sample and test it with the scanner and material that will be used in practice.
Practical Ways to Use a Barcode Generator⌄
- Create Code 128 labels for internal SKUs, stock records and mixed letter-and-number identifiers.
- Turn assigned EAN-13, EAN-8, UPC-A or UPC-E numbers into product barcode images.
- Prepare ISBN-13 barcode artwork for a book after obtaining the correct ISBN.
- Generate ITF-14 codes for outer packaging when that format is required by the supply workflow.
- Label shelves, storage bins, archive boxes, tools or equipment with identifiers linked to an internal database.
- Produce a batch of barcode files from a spreadsheet exported as CSV or from a plain TXT list.
- Create SVG barcodes for packaging layouts, label designs and documents that may be resized before printing.
- Export high-resolution PNG codes for office documents, product sheets and image-based templates.
- Print one-off thermal labels in a known size without building a full label-design project.
- Prepare a set of codes for inventory counts, classroom materials, event assets or collection management.
Before You Print Hundreds of Barcode Labels⌄
- Choose the format your scanner, database, retailer or receiving system expects; do not choose by appearance alone.
- Use Auto Detect as a helpful starting point, then verify the suggested standard when the value could fit more than one format.
- Do not invent, shorten or alter an officially assigned retail or publishing identifier.
- Keep Print Safe enabled unless you understand how bar width, contrast and quiet zones affect scanning.
- Black or very dark bars on white are the safest choice; decorative colors can reduce reliability even when they look attractive.
- Use SVG when the barcode will be resized in a design, and choose PNG when you need a fixed raster image at a known DPI.
- Match 203, 300 or 600 DPI to the printer workflow instead of assuming that the largest number is always necessary.
- For CSV import, place the barcode value in the first column and review the error report before using the batch.
- Avoid stretching the downloaded image independently in one direction because distorted bar widths can prevent scanning.
- Print and scan one sample on the actual label material before committing paper, ink and time to a large run.
Frequently Asked Questions
Which barcode formats can I create with Voymira?⌄
Voymira supports nine linear formats: Code 128, EAN-13, EAN-8, UPC-A, UPC-E, ISBN-13, Code 39, Codabar and ITF-14. Auto Detect can suggest a format from the value, and you can always choose the required standard manually.
Can I generate multiple barcodes from CSV or TXT?⌄
Yes. Switch to batch mode, paste one value per line or import CSV or TXT, and generate up to 500 barcodes in one run. Download the results as a ZIP containing PNG or SVG files. Invalid rows are listed separately so you can correct them.
Does this generator give me an official UPC, EAN or GTIN?⌄
No. The generator creates a barcode image from the number you enter, but it does not register or assign commercial identifiers. If a product needs an official GTIN, UPC or EAN for retail distribution, obtain the number through the appropriate issuing organization before generating the barcode.
Will Voymira calculate the barcode check digit?⌄
Yes, for supported numeric formats. Enter the required payload length and Voymira adds the check digit. If you enter the complete number, it validates the final digit and warns you when it is incorrect. A correct check digit verifies the number's structure, not its ownership or registration.
Should I download my barcode as PNG or SVG?⌄
Choose SVG for packaging artwork, label layouts and designs that may be resized, because it stays sharp at different dimensions. Choose PNG for documents, image fields and workflows that require a raster file. PNG is available at 203, 300 and 600 DPI.
Which barcode type should I choose?⌄
Use the standard required by the system that will scan the code. Code 128 works well for many internal letter-and-number identifiers. EAN and UPC are used with assigned retail numbers, ISBN-13 with books, and ITF-14 with outer packaging. Choose Code 39 or Codabar when an existing workflow specifically requires them.