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QR code guides & tutorials
Step-by-step guides on creating, scanning, tracking, and printing QR codes that actually work.
Can Scanning a QR Code Infect Your Phone?
Can scanning a QR code infect your phone? Almost never on its own: reading 8 test codes sent 0 requests to their links. Here is where the risk starts.
Mar 22, 2026
Minimum QR Code Size: How Small Can a QR Code Be?
The minimum QR code size for phone scanning is about 2 × 2 cm for a short link. See how distance and data change it, with a decode test we ran.
Mar 22, 2026
QR Code T-Shirt: How to Make One That Scans
Make a QR code t-shirt that scans when worn: the minimum size, the clear margin, the print methods that keep edges sharp, and the tests to run first.
Mar 22, 2026
How to Cancel a QR Code Generator Subscription
Stop renewals when canceling a QR code generator subscription to avoid charges: disable auto-renewal, record proof, and check if dynamic QR codes keep working.
Mar 21, 2026
How to Track QR Code Scans
How to track QR code scans: use a dynamic code and add UTM tags to its destination. We logged 1 test scan to see what a redirect records, and what it cannot.
Mar 19, 2026
How to Get a QR Code for My Etsy Shop
How to get a QR code for your Etsy shop: copy the link, make the code and test it. We checked which Etsy link formats redirect and how big each code gets.
Mar 15, 2026
What Is a QR Code on a Receipt?
A QR code on a receipt is a link the shop chose, or a tax record. In our simulated crease and fade test, only levels Q and H read through a 2 module crease.
Mar 9, 2026
How to Make a QR Code for a Discord Server
Create a Discord invite, convert it to a scannable QR code, export a print-safe PNG/SVG/PDF, and test on phones to avoid expired invites and scan failures.
Mar 8, 2026
How to Print QR Code Stickers (So They Scan Reliably)
Print QR code stickers that scan reliably: generate at final size, use high contrast and a clear quiet zone, pick durable material, and test before printing.
Mar 7, 2026
How to Send a QR Code via Text
How to send a QR code in a text: attach the image and add the link. In our JPEG test, size, not compression, decided whether a code still read.
Mar 6, 2026
How to Use QR Codes in Direct Mail
QR codes in direct mail turn postcards into measurable mobile experiences. Design for scannability, choose dynamic or static codes, and test before printing.
Mar 5, 2026
Do Screenshots of QR Codes Work?
QR screenshots usually scan if the image is sharp, uncropped (quiet zone intact) and not recompressed. Quick checks to fix saved QR codes so they scan reliably.
Mar 4, 2026
How to Create a QR Code for Wedding Photos
Make a QR code for wedding photos: pick an album guests can add to, copy its link and print the code big enough. We modeled 3 link lengths at table distance.
Mar 3, 2026
How to Generate QR Code in Excel
How to generate a QR code in Excel with the IMAGE function. We tested the formulas on 2 QR services: ENCODEURL keeps a link whole, a plain join cuts it.
Mar 2, 2026
How to Create a QR Code in Word
How to create a QR code in Word: the DISPLAYBARCODE field in Word for Windows, 1 code per row with MERGEBARCODE, and a picture on a Mac.
Mar 1, 2026
Can Barcode Scanners Read QR Codes?
Learn when barcode scanners can read QR codes, which scanners need a 2D imager and how to test or troubleshoot QR support for printed and phone-screen codes.
Feb 28, 2026
Can You Update a QR Code Link After Printing?
Can you update a QR code link after printing? Yes for a dynamic code, or a static one on your own site. Changing 2 letters redrew 11% of a static code.
Feb 27, 2026
How to Make a QR Code for an Amazon Wish List
Amazon Wish List QR code: turn your list’s share link into a scannable QR in minutes. Export a sharp, high-contrast image and test on iPhone and Android.
Feb 26, 2026
Why do some QR codes have a dinosaur?
Learn why some QR codes show Chrome’s pixel T-Rex, when the dinosaur can affect scanning, and how to create or avoid the Chrome-generated design for print.
Feb 25, 2026
How Many QR Codes Are Possible?
How many QR codes are possible? The largest code fits about 3.4 × 10^7111 different messages. We checked all 160 version and level pairs and read full codes.
Feb 18, 2026
Bulk QR Code Generator: How to Generate QR Codes in Bulk
Generate hundreds of QR codes from CSV or Excel with consistent design, export print-ready PNG/SVG/PDF, and avoid costly reprints with a pre-upload checklist.
Jan 28, 2026Get started
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