Create Barcodes Online, Right in Your Browser
This free barcode generator creates scannable barcode images directly in your browser. Type a code, upload a spreadsheet, or generate a whole numbered series β then download your barcodes as PNG or SVG.
Everything runs locally on your device. Your SKUs, serial numbers, asset IDs, and product data are never uploaded to a server. For barcode work, that matters more than you might think: the values you encode are often internal business data β unreleased product codes, warehouse locations, client inventory lists β and there is no reason that data should sit on someone else's server just to produce an image.
No sign-up, no watermark, no install.
Three Ways to Generate Barcodes
The tool has three modes, depending on how many barcodes you need and where your data lives.
Manual Mode: One Barcode at a Time
Type or paste a value, pick a barcode type, and the barcode appears instantly. Add an optional human-readable label underneath, then download it as PNG or SVG.
Manual mode is the fastest option when you need a single barcode β a quick asset tag, a test label, one product code, or a QR code for a link.
Upload Mode: Bulk Barcodes from Excel or CSV
If your codes already live in a spreadsheet, don't retype them. Upload an Excel or CSV file and the tool generates the entire batch at once.
The file format is simple:
| Column | Purpose | Example |
|---|---|---|
| Column A | Barcode value | SKU-001 |
| Column B | Optional label | Blue T-Shirt - Medium |
Column A is what the scanner reads. Column B is the text printed under the barcode so humans can identify the item too. Your spreadsheet is parsed locally in your browser β the file never leaves your device.
This mode is built for inventory lists, product catalogs, asset registers, and event badge lists. For the full spreadsheet workflow, including how to structure your file and avoid common parsing mistakes, read the Bulk Barcode Generator guide.
Sequential Mode: Numbered Series in Seconds
Need INV-2026-001 through INV-2026-500? Sequential mode generates an ordered series automatically. Set a prefix, a starting number, and a quantity β the tool creates the whole run without you touching a spreadsheet.
This is the quickest way to produce:
- storage box and bin labels
- numbered asset tags
- ticket or badge numbers
- order and batch numbers
- shelf and location codes
Most barcode tools make you build sequences in Excel first. Here, the numbering is built in.
Supported Barcode Types
The generator supports the most widely used 1D and 2D barcode formats:
| Barcode Type | Best For |
|---|---|
| Code 128 | SKUs, inventory, asset tags, serial numbers, internal labels |
| UPC-A | Retail products in the US and Canada (12 digits) |
| EAN-13 | Retail products sold internationally (13 digits) |
| JAN | Retail products in Japan (EAN-13 with a Japanese prefix) |
| EAN-8 | Small retail items with limited label space (8 digits) |
| ITF-14 | Shipping cartons and outer case packaging (14 digits) |
| QR Code | URLs, text, Wi-Fi credentials, contact info, mobile scanning |
Which barcode type should you choose?
For internal use β inventory, warehouse bins, asset tracking, employee badges β use Code 128. It encodes letters, numbers, and common symbols, so codes like ASSET-LAPTOP-024 work without restrictions.
For retail products, the format depends on where you sell: UPC-A for the US and Canada, EAN-13 for international markets, JAN for Japan (see the JAN Code Guide), EAN-8 for very small packaging. Note that these formats require valid product numbers β more on that below. For a full breakdown of the differences, read Product Barcodes 101: UPC-A vs. EAN-13.
For shipping cartons and cases, use ITF-14. It encodes a 14-digit GTIN and is designed for corrugated cardboard, where a standard retail barcode often prints poorly.
For anything scanned with a phone β links, menus, instructions, check-ins β use a QR Code.
Download as PNG or SVG
Every barcode can be exported in two formats:
- PNG β a ready-to-use image for Word documents, Avery label templates, thermal label software, spreadsheets, and quick printing.
- SVG β a vector file that scales without blurring, ideal for product packaging, Illustrator or Figma layouts, and designer handoff.
As a rule of thumb: PNG for labels and office documents, SVG for packaging and design work. If you're not sure which you need, the PNG vs. SVG comparison walks through both.
Printing Your Barcodes
A barcode that looks perfect on screen can still fail under a scanner if it's printed too small, stretched, or cropped. Before printing a full batch:
- Keep the aspect ratio locked when resizing β never stretch width or height independently.
- Preserve the quiet zone (the blank margin around the bars).
- Print black bars on a matte white background for maximum contrast.
- Print one sample and test scan it before running the whole batch.
For label templates, printer types, sizing, and the most common printing mistakes, read How to Print Barcode Labels.
Important: Barcode Images vs. Official Product Numbers
This tool creates the barcode image. It does not issue official retail product numbers.
For internal labels β SKUs, asset tags, warehouse codes β you can invent any values you like and encode them with Code 128. That's exactly what internal barcodes are for.
But if you're selling products through retail stores or marketplaces, your UPC, EAN, or JAN number must be an official identifier registered to your business. A generated image of an unregistered number is still an unregistered number. The product barcode guide explains how GTINs work and when you need official numbers.
Frequently Asked Questions
Is this barcode generator really free?
Yes. All three modes β manual, file upload, and sequential β are free, with no sign-up, watermark, or download limit.
Is my data uploaded to a server?
No. Barcodes are generated locally in your browser. Uploaded Excel and CSV files are also parsed on your device and never transmitted.
Can I create many barcodes at once?
Yes. Use Upload mode to generate barcodes in bulk from an Excel or CSV file, or Sequential mode to create a numbered series automatically. See the bulk barcode guide for the spreadsheet workflow.
Can I use this to create a UPC or EAN barcode for my product?
Yes, if you already have a valid UPC, EAN, or JAN number. The tool creates the scannable image, but it does not register official product identifiers. For retail sales, get official numbers first β details in Product Barcodes 101.
What barcode type should I use for inventory labels?
Code 128. It supports letters, numbers, and symbols, which makes it the most flexible format for SKUs, serial numbers, and asset tags.
Should I download PNG or SVG?
PNG for label templates, office documents, and thermal printing. SVG for packaging artwork and design software, since it scales without blurring. The PNG vs. SVG guide covers the details.
Will the barcodes scan correctly when printed?
Yes, as long as they're printed clearly: correct size, locked aspect ratio, high contrast, and an intact quiet zone. Always test scan one sample first β the printing guide explains how.