Practical Tools

Marketing and Content Tools

Generators and calculators for marketing, content, and campaigns.

12 tools available

QR Code Generator

Generate a QR code for any URL, text, email, or phone number. Download as PNG.

WiFi QR Code Generator

Create a QR code for your WiFi network so guests can connect without typing the password.

Barcode Generator

Generate barcodes in CODE128, CODE39, EAN-13, EAN-8, UPC-A, and other formats. Download as PNG or SVG.

Barcode Validator

Validate any barcode and calculate GS1 check digits for UPC-A, EAN-13, EAN-8, and ITF-14.

ISBN Barcode Generator

Generate print-ready ISBN barcodes from any ISBN-10 or ISBN-13. Auto-converts and calculates check digits.

Sequential Barcode Generator

Generate sequential barcode labels like SN-0001 to SN-0500 and download a printable PDF sheet.

Barcode Label Sheet Generator

Create printable barcode label sheets with product name, SKU, price, and barcode. Enter manually or paste a CSV.

EAN-13 Barcode Generator

Generate EAN-13 barcodes with auto check digit calculation. Download as PNG or SVG.

UPC-A Barcode Generator

Generate UPC-A barcodes with auto check digit calculation. Used for US and Canadian retail products.

ITF-14 Carton Barcode Generator

Generate ITF-14 carton barcodes (GTIN-14) with auto check digit. Used for shipping cases and logistics labels.

Code 128 Barcode Generator

Generate Code 128 barcodes for inventory, shipping, and internal labels. Encodes the full ASCII character set.

Code 39 Barcode Generator

Generate Code 39 barcodes for asset tags, ID badges, and legacy inventory systems. Auto-uppercases input and flags invalid characters.

About Marketing and Content Tools

From generating a QR code for a product page to printing a full sheet of barcode labels for an inventory system, these free marketing and barcode tools handle the day-to-day tasks that would otherwise require expensive desktop software. The barcode generators support every major format - Code 128 for internal inventory, EAN-13 and UPC-A for retail products, ITF-14 for carton labels, ISBN for books, and Code 39 for asset tags and ID badges. The label sheet generator produces print-ready PDFs with Avery-compatible layouts and supports CSV import for bulk jobs. The invoice generator handles multi-line invoices with tax, discount, and logo support. Everything runs in your browser - no upload, no account, no software to install.

Who uses these tools?

  • Retailers and e-commerce sellers generating EAN-13 or UPC-A barcodes for product labels
  • Warehouse and inventory managers printing sequential barcode label sheets for bin and shelf labelling
  • Freelancers and small businesses generating professional invoices with their own branding
  • Publishers and booksellers generating ISBN barcodes for book covers and stickers
  • Event organisers and asset managers creating QR codes and barcode labels for ticketing and tracking
  • Logistics teams generating ITF-14 carton barcodes and validating check digits

Frequently asked questions

Which barcode format should I use for my product?
For retail products sold in stores or on major marketplaces (Amazon, Walmart, supermarkets), use EAN-13 (international) or UPC-A (North America). Both require a GS1-licensed company prefix for official retail use. For internal inventory, asset tags, or logistics, use Code 128 - it supports full alphanumeric input and is the most versatile format. For legacy systems or DoD compliance, Code 39 is widely supported.
Is my data uploaded when I generate a QR code or barcode?
No. All barcode and QR code generation happens entirely in your browser using JavaScript. Your data is never sent to any server. You can generate barcodes containing sensitive information (internal codes, private URLs) without any privacy risk.
Can I use these barcodes for retail sale?
For retail sale through major retailers or online marketplaces, you need a GTIN assigned via a legitimate GS1 company prefix. Do not invent EAN-13 or UPC-A codes for retail products sold in stores - conflicting codes create problems for retailers and their systems. These generators are suitable for internal use, testing, and for rendering GTINs you have legitimately obtained.