Free Online Barcode Generator
Barcodes are the backbone of modern retail, warehousing, and inventory management. Whether you run a kirana store, supermarket, apparel boutique, pharmacy, or wholesale distribution business, labelling your products with scannable barcodes speeds up POS billing and eliminates manual typing errors. With our Free Online Barcode Generator, you can create custom, print-ready barcode stickers in seconds without installing any software.
What is a Barcode Generator?
A Barcode Generator is a digital tool that converts alphanumeric product codes, SKUs, or serial numbers into machine-readable parallel black and white bars. When scanned with a laser or camera-based barcode scanner, the encoded string is decoded instantly and matched to the item’s name, HSN code, GST rate, and selling price in your billing software.
Want to generate barcodes in bulk and scan items for instant GST billing?
Barcode Formats Supported by This Tool
Different industries and retail channels use specific 1D barcode symbologies. You can switch between the four most widely used formats:
A high-density alphanumeric barcode that encodes uppercase and lowercase letters, numbers, and punctuation. Ideal for in-house SKUs, logistics, and inventory tracking.
The 13-digit International Article Number standard used on packaged retail products sold across India and worldwide. Our tool automatically computes the 13th Modulo-10 check digit.
A durable industrial barcode format supporting uppercase letters (A–Z), digits (0–9), and selected symbols (- . $ / + %). Widely used in manufacturing, automotive, and ID badges.
A 12-digit numeric barcode with automatic check-digit calculation used for retail point-of-sale checkout and export goods.
How to Generate & Print Barcodes Online?
Create your product barcode labels in five simple steps:
- Select Barcode Symbology: Choose Code 128 for custom alphanumeric SKUs or EAN-13 / UPC-A for standard numeric retail codes.
- Enter Barcode Value: Type your product code or click “Generate Random Code” to create a unique SKU automatically.
- Add Product Name & MRP: Enter your item title and retail price to include them directly on the printable label sticker.
- Adjust Size & Style: Customize bar thickness, height, human-readable text visibility, and label count.
- Download or Print: Download a high-resolution PNG or vector SVG file, or open the multi-label sheet preview to print stickers on an A4 or thermal printer.
Benefits of Using Barcodes in Your Business
Adopting barcode billing transforms daily store operations:
⚡ Faster POS Checkout
Scan items in a fraction of a second instead of searching product names manually during peak hours.
🎯 Accurate Pricing & Tax
Every scan pulls the exact MRP, discount, and GST slab linked to that SKU—preventing billing mistakes.
📦 Streamlined Stock Audits
Perform physical stock verification and inward stock entry effortlessly using a handheld or mobile scanner.
🏷️ Professional Packaging
Branded stickers showing your shop name, item title, barcode, and MRP build customer trust.
FAQs on Free Barcode Generator
Is this online barcode generator completely free?
Yes! You can generate, customize, download (in PNG and SVG formats), and print unlimited barcodes for your products and inventory at zero cost and without any watermark or sign-up.
Which barcode format is best for my retail shop or kirana store?
If you are creating barcodes for in-house use inside your own shop or warehouse (such as loose groceries, garments, or hardware items), Code 128 is the most flexible choice because it accepts letters, numbers, and hyphens of any practical length. If you manufacture packaged goods for sale in third-party supermarkets or e-commerce platforms, use EAN-13.
How is the 13th check digit in an EAN-13 barcode calculated?
In an EAN-13 barcode, the first 12 digits represent the country prefix, manufacturer code, and product code, while the 13th digit is a Modulo-10 check digit calculated from the weighted sum of the first 12 digits. When you enter 12 digits into our EAN-13 generator, it automatically calculates and appends the correct 13th check digit.
Will these generated barcodes work with any barcode scanner?
Yes. Our generator follows the official ISO/IEC encoding specifications for Code 128, Code 39, EAN-13, and UPC-A, including mandatory quiet zones, start/stop patterns, and checksums. They scan reliably with 1D laser scanners, 2D CCD scanners, and smartphone camera apps.
Can I print these barcode labels on an ordinary A4 printer?
Absolutely. Click “Preview & Print Multi-Label Sheet”, select 12 or 24 labels, and print directly onto standard self-adhesive A4 label sheets using any laser or inkjet printer, or print single labels on a thermal barcode printer.
Do I need GS1 registration to use barcodes?
If you only scan barcodes within your own store, godown, or branch network for billing and stock tracking, you do not need GS1 registration—you can assign your own unique SKU codes using Code 128. You only need a GS1-issued EAN/UPC number if you distribute branded products to external retail chains or online marketplaces that mandate global GTINs.
What is the difference between downloading PNG and SVG?
PNG is a high-resolution raster image ready to drop into Word documents, Excel sheets, or label software. SVG is a scalable vector file that remains razor-sharp at any print size—ideal for graphic designers and commercial product packaging.
Why should the barcode background stay light and bars stay dark?
Barcode scanners work by measuring reflected light: dark bars absorb light while light spaces (and the quiet zones on both sides) reflect it. High contrast—such as black bars on a white background—ensures 100% first-pass scan accuracy.