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.
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How to scan a QR code on iPhone
Ways to scan a QR code on an iPhone or iPad — with the built-in Camera, from Control Center, 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 your own QR code for a link and more, then share or print it. Here's the general flow in 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 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 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
Turn QR code detection in the iPhone Camera on or off, add or remove the Scan Code control, and what to check when your iPhone stops seeing QR codes.
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.
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