QR code guides
Practical guides to QR codes and the free tools built around them — how QR codes work, print sizing, why they fail to scan, static vs dynamic.
Why your QR code isn't scanning
The real reasons a QR code fails to scan — low contrast, no quiet zone, printed too small, a broken destination — and how to fix each one.
Static vs dynamic QR codes
The difference between static and dynamic QR codes, when each makes sense, what they cost, and why you can't convert one into the other.
How to make a QR code menu you can update
A practical guide to QR code menus for restaurants and cafes — link to a web page, not a PDF, so you can change prices without reprinting the code.
What size should a QR code be?
The one rule for QR code size — scanning distance divided by ten — plus a print-size chart for business cards, flyers, posters, packaging, banners and billboards.
How to track QR code scans for free
You don't need a paid dynamic QR code to count scans. Point a static QR code at a URL with UTM tags and your website analytics does the counting — here's the exact setup.
QR code best practices
Twelve practical rules for QR codes that actually get scanned — contrast, size, quiet zone, the call to action, the destination, testing, and where static beats dynamic.
How do QR codes work?
What the squares, the three corners and the quiet zone actually do, how a phone reads a QR code in a fraction of a second, and why some codes survive damage — no jargon.
How to make a certificate with a verifiable QR code
Design a certificate with a built-in QR code that lets anyone verify it's real — free templates, seals and signatures, plus how to generate hundreds at once from a spreadsheet.
How to make a professional PDF invoice for free
How to create a professional PDF invoice for free — any currency, GST/tax fields, 30 templates, and a QR code that lets clients pay you directly from the invoice.
How to build a fillable PDF form for free
Build a real fillable PDF form in your browser — text fields, checkboxes, dropdowns, signatures — with no Adobe Acrobat and nothing to install.
How to design a QR code poster or flyer for free
Design a print-ready poster or flyer with a QR code built into the layout — free templates, custom shapes and text, high-resolution export for real printing.
How to generate 100+ QR codes at once
Generate dozens or hundreds of QR codes at once from a spreadsheet — numbered series, consistent styling, and a single ZIP download, all for free.
Digital business card vs paper: how to make a free vCard QR code
Skip the reprint every time your number or title changes — build a free digital business card with a vCard QR code that saves straight into a phone's contacts.
How to make a QR code for a PDF
Turn a PDF — a menu, brochure, resume or manual — into a QR code people can scan and open instantly. Two free methods, and how to choose between them.
QR code vs barcode: what's the actual difference
QR codes and barcodes solve different problems. Here's the real difference in what they can store, how they're scanned, and which one actually fits your use case.
How to put a QR code on a T-shirt or product label
Getting a QR code onto fabric or a product label without it breaking — the right size, contrast, and print method for something that gets washed, folded or handled.
Do QR codes expire? The truth about QR code lifespan
QR codes don't expire the way people think — but the thing behind them can. The real difference between a code that lasts forever and one that stops working.