Tools · Android
QR Code Scanner
Fast QR & barcode scanner with a built-in QR code generator
Scan any QR code instantly, and create your own in seconds
QR Code Scanner is a fast, no-clutter scanner for QR codes and common barcodes, plus a built-in generator for creating your own QR codes for links, Wi-Fi, contact cards, and plain text. It opens straight to the camera, recognises codes almost instantly, and shows you exactly what a code contains before you open a link or dial a number — so you're never scanning blind.
Key features
- ✓Instant QR code scanning — opens straight to the camera
- ✓Barcode scanning for products, in addition to QR codes
- ✓Built-in QR code generator for URLs, text, Wi-Fi and contacts
- ✓Scan history so you can revisit previously scanned codes
- ✓Preview before action — see what a link or code contains before opening it
- ✓Works with QR codes for payments, menus, tickets and Wi-Fi sharing
- ✓Lightweight app that opens and scans quickly, even on older phones
- ✓No account or sign-up required to scan or generate codes
Guides & articles
In-depth guides related to QR Code Scanner.
Check the Link Before You Open It: A Quick Routine
A ten-second routine for reading the address in a scanned QR code and spotting the signs of a suspicious link.
Read article →QR Codes in the Classroom: Ideas for Teachers
Simple ways teachers use QR codes: quizzes, treasure hunts, reading extras and quick links to resources.
Read article →QR Scanners and Camera Permissions: What to Allow
Why a scanner app needs camera access, which other permissions it does not need, and how to review them.
Read article →Shortened Links in QR Codes and What They Hide
Why people shorten links for QR codes, how it changes the scanning experience, and how to stay careful with them.
Read article →What a QR Scan Reveals About You
Scanning a code is not anonymous once you open its link. Learn what a website can learn from a visit and how to limit it.
Read article →Scanning a QR Code That Is on Another Screen
Why screen-to-camera scanning sometimes fails, and how to fix flicker, brightness and distance problems.
Read article →Scanning QR Codes in Low Light and Glare
Practical fixes when a QR code will not scan because it is too dark, too bright or covered with reflections.
Read article →Scanning QR Codes on Curved, Wrinkled or Shiny Surfaces
How bottles, cans, creased paper and metallic packaging distort QR codes, and how to scan them anyway.
Read article →What Makes a QR Scanner Fast on an Older Phone
Why some scanner apps feel slow on older hardware, and what to look for in a lightweight, quick scanner.
Read article →Why Camera Focus Matters When Scanning a Code
Blur is a leading cause of failed scans. How focus, distance and steady hands affect whether a code reads.
Read article →QR Code Formats for Phone, Email, SMS and Location
The text formats that make a scanned QR code start a call, an email, a text message or a map search.
Read article →QR Codes for Contacts: vCard and MECARD Formats
How a contact card is stored in a QR code, the two common formats, and tips for keeping contact QR codes easy to scan.
Read article →QR Codes for Plain Text: Notes, Messages and Serial Numbers
Not every QR code is a link. Learn how to use plain-text codes for short messages, labels, instructions and serial numbers.
Read article →Sharing a Website Link With a QR Code: Best Practices
How to make a link QR code that scans easily and takes people to a page that works well on a phone.
Read article →Testing a QR Code Before You Print It: A Checklist
A short checklist for testing a QR code on screen and on paper so you catch problems before printing hundreds of copies.
Read article →Adding a Logo to a QR Code Safely
How designers place a logo inside a QR code by using error correction, and the limits that keep it scannable.
Read article →Colour and Contrast in QR Codes: What Still Scans
How to add colour to a QR code without breaking it, and the colour choices that cause scanning failures.
Read article →How Big Should a QR Code Be? Size and Scanning Distance
A simple rule of thumb for QR code size at different scanning distances, with tips for posters, cards and packaging.
Read article →Static and Dynamic QR Codes Explained
What is the difference between a QR code that stores its content directly and one that points to a redirect? A plain explanation.
Read article →The Quiet Zone and Other Printing Rules for QR Codes
Practical rules for printing QR codes that scan reliably: the quiet zone, contrast, flat surfaces and what to avoid.
Read article →Check Digits: How a Barcode Catches Its Own Typos
The last digit of a product barcode is a check digit. See how it is calculated and why it prevents most misreads.
Read article →Code 128 and Code 39: The Barcodes Behind Labels and Warehouses
Beyond product barcodes, many labels use Code 128 or Code 39. Learn what they encode and where you will meet them.
Read article →Data Matrix, PDF417 and Aztec: The Other 2D Codes
QR is the best-known square code, but others exist. A guide to Data Matrix, PDF417 and Aztec and where each appears.
Read article →How EAN-13 and UPC-A Product Barcodes Are Structured
What the digits under a product barcode mean: country or prefix, maker, product and the final check digit.
Read article →ISBN Barcodes on Books: What the Numbers Tell You
How the ISBN identifies a book edition, why it starts with 978 or 979, and how the barcode on the back cover relates to it.
Read article →Error Correction in QR Codes: Why Damaged Codes Still Scan
QR codes carry built-in redundancy. See the four error-correction levels and what they mean for scratches, smudges and folds.
Read article →How a QR Code Is Built: Finder Patterns and Modules
A look inside a QR code: the three corner squares, the timing lines, the data modules and why a phone can read it from any angle.
Read article →QR Code Versions 1 to 40 and How Much They Hold
QR codes come in 40 sizes called versions. Learn how size relates to capacity and why shorter content makes an easier code to scan.
Read article →The First Barcode Scan: Wrigley's Gum in 1974
The story of the first product barcode scanned at a supermarket checkout, and how the idea took years to catch on.
Read article →The History of the QR Code: From Car Parts to Your Phone
How a Japanese engineer created the QR code in 1994 to track car parts, and how it became a worldwide tool.
Read article →How to Create a QR Code for Wi-Fi Sharing (No More Spelling Out Passwords)
Why a Wi-Fi QR code is faster and more reliable than sharing a password verbally, and how to generate one for guests.
Read article →The History of QR Codes: From Factory Floors to Restaurant Tables
A short history of how QR codes were invented for the automotive industry and became a global everyday tool decades later.
Read article →How QR Code Payments Work (And Why They're So Popular in India)
How QR-code-based payment systems work technically, and why they've become the dominant way to pay in India and other markets.
Read article →QR Code Scam Safety: How to Spot a Malicious QR Code
Practical safety tips for avoiding QR code scams, including 'quishing' phishing attacks, fake payment codes and sticker overlays.
Read article →QR Code Not Scanning? 8 Common Fixes
Practical troubleshooting steps for when a QR code won't scan — lighting, focus, screen glare, damaged codes and more.
Read article →QR Code vs Barcode: What's the Actual Difference?
A clear comparison of QR codes and traditional barcodes — how they store data differently, and when each is actually used.
Read article →How QR Codes Work for Event Tickets and Check-Ins
How QR code ticketing and event check-in systems work, and practical tips for making sure your ticket scans smoothly.
Read article →Using QR Codes on Business Cards and Resumes
Practical ways to use QR codes on business cards and resumes to share contact details, portfolios and profiles effectively.
Read article →QR Codes for Small Businesses: Menus, Payments & Marketing
Practical, low-cost ways small businesses use QR codes for menus, payments, reviews and marketing, with tips for doing it well.
Read article →What Is a QR Code and How Does It Actually Work?
A plain-language explanation of what a QR code is, how it stores data, and why it became so widely used.
Read article →Frequently asked questions
Does the app work without an internet connection?+
Scanning and reading the content of a QR code works without internet. You'll only need a connection if the code itself points to a website you then choose to open.
Can I create my own QR codes, not just scan them?+
Yes, the app includes a built-in QR code generator for turning a link, piece of text, Wi-Fi details or a contact card into a scannable QR code.
Does it scan regular barcodes too, or only QR codes?+
The app supports common barcode formats in addition to QR codes, so it works for scanning product barcodes as well.
Is it safe to scan QR codes with this app?+
The app shows you what a QR code contains before taking any action, such as opening a link, so you can check it looks legitimate before proceeding — a safer habit than apps that open links automatically.
Is the app free to use?+
Yes, QR Code Scanner is free to download and use from the Google Play Store.