Help & how-to guides
Everything you need to scan QR codes and barcodes, create your own codes, and fix a code that won't read — on iPhone, iPad, and Mac.
How to scan a QR code on iPhone
Two ways to scan a QR code on an iPhone or iPad — with the built-in Camera app, or with Scan QR Code Master for history, barcodes, and more.
Read guide →How to scan a QR code from a photo or screenshot
The QR code is in a picture, not in front of you? Here's how to scan a QR code from a screenshot or a saved photo on your phone.
Read guide →How to create your own QR code
Make a free QR code for a link, text, Wi-Fi, contact card, and more — then share or print it. A simple walkthrough with Scan QR Code Master.
Read guide →QR code not scanning? How to fix it
A checklist for when a QR code won't scan — camera settings, lighting, distance, and damaged or low-contrast codes.
Read guide →How to scan a barcode with your phone
Scan product barcodes (UPC/EAN), QR codes, and other formats with your phone to look up items, prices, and details.
Read guide →What is a QR code and how does it work?
A plain-English explainer of what QR codes are, how they store information, and what they're used for.
Read guide →How to make a Wi-Fi QR code
Let guests join your Wi-Fi by scanning a code — no more reading out a long password. Here's how to create a Wi-Fi QR code.
Read guide →How to make a QR code for a website link
Turn any URL into a scannable QR code for a poster, flyer, business card, or slide. A quick step-by-step.
Read guide →How to make a QR code business card (vCard)
Share your name, phone, email, and website with one scan. Here's how to make a vCard QR code that adds you to someone's contacts.
Read guide →How to scan a QR code on Android
How to scan a QR code on an Android phone with the built-in camera, Google Lens, or a dedicated scanner app.
Read guide →How to scan a QR code on a Mac
No rear camera on your Mac? Here's how to read a QR code that's on your Mac's screen or in a saved image.
Read guide →How to make a QR code for your Instagram
Grow your following by putting a scannable code on flyers, packaging, or a storefront. Here's how to make a QR code for your Instagram profile.
Read guide →How to share and print a QR code
Once you've made a QR code, here's how to share it digitally and print it so it always scans cleanly.
Read guide →Static vs dynamic QR codes: what's the difference?
Static and dynamic QR codes look identical but work differently. Here's which one to use and why.
Read guide →Are QR codes safe? How to scan safely
QR codes are safe to scan when you check where they lead. Here's how to spot a malicious code and scan with confidence.
Read guide →How to make a QR code for a restaurant menu
Put your menu one scan away. Here's how to create a QR code that opens your digital menu on any phone.
Read guide →How to make a QR code for a YouTube video
Send people straight to your video or channel with a scannable code. Here's how to make a QR code for YouTube.
Read guide →How to scan a QR code without a separate app
Your phone can already scan most QR codes without installing anything. Here's how — and when a dedicated app still helps.
Read guide →How to find your QR code scan history
Scanned a code and lost it? Here's how a scan history keeps every QR code and barcode you've read so you can find it again.
Read guide →How to scan a product barcode to look it up
Scan the barcode on a product to look it up, copy its number, or compare it — here's how it works on your phone.
Read guide →How to make a QR code for a phone number, text, or email
Create a QR code that starts a call, drafts a text, or opens a pre-filled email in one scan.
Read guide →How to turn QR code scanning on or off on iPhone
The iPhone Camera scans QR codes by default. Here's how to turn that on if it's not working — or off if you don't want it.
Read guide →How big should a QR code be?
Print a QR code too small and it won't scan. Here's a simple rule for sizing a code for cards, flyers, posters, and billboards.
Read guide →How QR code error correction works
Why a scuffed or partly-covered QR code still scans — a plain-English look at QR error correction levels.
Read guide →How to make a QR code in Google Chrome
Chrome can turn the page you're on into a QR code with no extra tools. Here's how — on desktop and on your phone.
Read guide →How to scan a QR code on a Samsung Galaxy phone
Three ways to scan a QR code on a Samsung Galaxy — the camera, the Quick Settings scanner, and Bixby Vision.
Read guide →How to make a QR code for a Google Form
Collect responses fast by letting people scan straight to your survey. Here's how to make a QR code for a Google Form.
Read guide →How to make a QR code for a PDF
Share a PDF menu, brochure, or handout with a scan. Here's how to make a QR code that opens a PDF file.
Read guide →How to make a QR code that starts a WhatsApp chat
Let customers message you on WhatsApp with one scan using a click-to-chat link. Here's how to make the code.
Read guide →How to make a QR code for your Facebook page
Send people straight to your Facebook page or profile with a scannable code for print, packaging, or a storefront.
Read guide →How to make a QR code for Google reviews
Make it one scan for customers to leave you a Google review. Here's how to create a review QR code for your business.
Read guide →How to make a QR code for a Spotify song or playlist
Share a track, album, playlist, or artist with a scan. Here's how to make a QR code for Spotify.
Read guide →How to make a QR code for an app download
Send people to your app on the App Store or Google Play with a scan. Here's how to make a download QR code.
Read guide →How to make a QR code for a location on the map
Guide people to your address with a scan that opens the map. Here's how to make a QR code for a location.
Read guide →How to make a QR code for an event or ticket
Put event details or a ticket page one scan away. Here's how to make a QR code for an event.
Read guide →How to make a QR code with a logo in the middle
Add your logo to the center of a QR code without breaking it. Here's how error correction makes it possible.
Read guide →How to change the color of a QR code (and keep it scannable)
A colored QR code can match your brand — if you keep enough contrast. Here's how to color a code without breaking it.
Read guide →QR code vs barcode: what's the difference?
QR codes and barcodes both store data a scanner reads, but they work differently. Here's how they compare.
Read guide →How to scan a QR code on an iPad
Scan QR codes on an iPad with the built-in Camera, or with Scan QR Code Master for history and barcodes.
Read guide →How to scan a QR code on a Windows PC
No rear camera on your laptop? Here's how to read a QR code on a Windows PC — from the screen, an image, or your webcam.
Read guide →How to add a QR code to your resume
A QR code on your resume links a recruiter straight to your portfolio or LinkedIn. Here's how to add one well.
Read guide →How to test a QR code before printing it
A five-minute check that saves a reprint. Here's how to test a QR code before you commit it to paper.
Read guide →How to make a QR code for your TikTok
Grow your TikTok by putting a scannable code on your other channels or in print. Here's how to make one.
Read guide →How to make a QR code for your link-in-bio page
Point people to all your links at once with a QR code for your link-in-bio page. Here's how to make it.
Read guide →