50 FAQs on QR Codes and QR Code Generator

With QR Codes becoming extremely popular, we decided to put together a comprehensive list of questions that you might have had about QR Codes and QR Code generators.

Armed with this information, you can start creating QR Codes like an expert.

Table of Contents

1. Basics
2. The technology of QR Code
3. Types of QR Code
4. Use-cases of QR Code
5. Scanning ability
6. Bonus QR Code FAQs

QR Code usage globally has multiplied in folds ever since its inception. By research, an estimated 11 million households will scan a QR Code in 2020 in the USA alone. 

PART 1 – Basics

1. What is a QR Code?

A QR Code is a 2-D square-shaped black and white barcode that can be read by smartphones. QR Codes store information that can be used to make a call, send a message/email, open a website, or even redirect to a location. 

A QR Code can store up to 4296 characters or 7089 digits in a single code making it viable to hold large amounts of content. 

Want to know more about QR Codes? 

2. What does QR stand for?

QR stands for Quick Response. QR Codes are capable of being scanned within a couple of seconds, and hence the name. 

3. How does a QR Code work?

A QR Code works in a similar fashion to that of a barcode. It is a machine-scannable image that can be read by smartphones either via its native camera or third-party apps. Every QR Code contains small data packets in the form of dots that hold a certain piece of information. 

When a smartphone is directed at a QR Code, it displays the user information that is easily understandable. 

4. How do I generate a QR Code?

QR Codes can be generated online in a hassle-free and inexpensive method. Use a free QR Code generator like Beaconstac to create any kind of QR Codes. 

Watch how to generate a QR Code –

Step 1 – Select a QR Code generator (How to select a QR Code solution)

Step 2 – Choose between static and dynamic QR Codes (What’s the difference?)

Step 3 – Select the type of QR Code to be generated

Step 4 – Enter the relevant information

Step 5 – Customize the QR Code (Tips to create a custom QR Code) 

Step 6 – Generate and test the QR Code

Step 7 – Download it in any of the formats (JPG, SVG, EPS, or PNG)

Read our detailed guide on how to create QR Codes for Android, iOS, and desktop

5. What is the size of a QR Code?

The minimum size of a QR Code should be 2 cm x 2 cm. However, the size of the QR Code depends on the medium of the outlet chosen. 

For best results use this formula, 

Size of the QR Code = Distance between the QR Code and the scanner / 10 

For instance, if a QR Code is 33 cm, it can be read from as far as 3 m. 

The size of the QR Code is determined by the size of its modules and the version of the QR Code. The module refers to the black and white dots that make the data pattern and the version to use depends on the data to be encoded. 

There are two versions namely – 

1. Version 1 – This type of QR Code has 21 modules on its sides. For one version larger QR Code, the number of modules on the side increases by 4, and the largest version is 40. 
2. Version 2 – This type of QR Code has 25 modules on its sides. If the size of the module is 0.5 mm, the size of this QR Code will be 12.5 mm x 12.5 mm (although a white space of 4 modules must be placed around the code to use it).

6. Can QR Codes be customized?

Yes, QR Codes can be customized to any desired color, pattern, and template depending on the requirement. However, remember that only dynamic QR Codes can be edited after creating them. 

Static QR Codes can be customized but there is no opportunity to edit them after downloading them. 

A QR Code can be customized with the following options – 

1. Color/Gradient
2. Logo
3. Change data pattern and eye shape
4. Add background image
5. Add a call-to-action (CTA) frame 

Read how to create a custom QR Code + 9 design tips 

7. What is a static QR Code and dynamic QR Code?

To put it simply, static QR Codes are uneditable after creating them; dynamic QR Codes are editable. Not just that, dynamic QR Codes can be tracked, analyzed, set landing pages, and can be customized as and when required. 

Here is a table to simplify the differences –

8. Can QR Codes be edited?

Once QR Codes are created, only dynamic QR Codes can be edited. Static QR Codes cannot be edited once they are created. 

9. How do I create a free QR Code?

There are several free QR Code generators in the market to create a free QR Code. Beaconstac’s free QR Code generator offers a robust experience and multiple features to create the best quality free QR Code. 

QR Codes are free up to a certain extent. If choosing a static QR Code, they are free for unlimited use. If choosing a dynamic QR Code, they are free as long as the free trial period persists. 

Beaconstac offers dynamic QR Codes starting from $5 to create beautiful customized QR Codes. 

10. Are QR Codes free?

Static QR Codes are free, whereas dynamic QR Codes are not. 

Static QR Codes can neither be edited nor have the advanced functionality to leverage them for the fullest capacity, whereas dynamic QR Codes have multiple advanced features to help with your campaigns. 

11. Are QR Code generators safe?

Yes. Creating and downloading QR Codes on a suspicious website could lead to downloading malware. However, Using safe QR Code generators such as Beaconstac can prevent this from happening. 

It is best advised to use an online QR Code generator to avoid downloading any kind of malware in any case. 

12. How do I create QR Codes in bulk?

Bulk QR Codes are created by the following these simple steps –  

1. Open the dashboard and click on ‘Bulk QR Codes’ on the left panel
2. Click on ‘Upload Now’ and choose the type of QR Code to be created 
3.  Upload a CSV file or copy the online link and paste it in the dashboard
4. Customize the QR Code. The customization will apply to all the QR Codes generated 
5. Download the ZIP file to access the QR Codes 

13. How to create a serial QR Code?

A serial QR Code can be used for inventory management and tracking purposes. 

Serial QR Codes are typically created in bulk. 

To create a serial QR Code, follow these steps – 

1. Make use of the bulk QR Code generator to get started.
2. Specify the following details for your serial QR Code – prefix, the first value of the series, level of increment, and the last value in the series.
3. Choose the QR Code type and customize it to change its color, eyes, pattern, and add a CTA frame.
4. Make use of advanced features to track your QR Codes on a granular level.
5. Generate and test the serial QR Code.
6. Download the serial QR Codes. 

14. Can QR Codes be tracked and analyzed?

Yes. However, only dynamic QR Codes can be tracked and analyzed. Static QR Codes cannot be tracked and analyzed.

These dynamic QR Codes are tracked and analyzed to gauge the marketing campaign, assess the number of scans, locations, and devices of the QR Code scans, retargeting, and rebranding purposes. 

15. How do I check the performance of my QR Code?

To track the performance of your QR Code, log in to Beaconstac’s dashboard and go to the Analytics section to check the performance of your QR Codes on a granular level. 

Link Google Analytics to your QR Codes to track their performance on a deeper level to help you gauge their performance better. 

16. Can a damaged QR Code still work?

Yes, a damaged QR Code can still work. However, there is only up to a certain level that a QR Code reader can read the code correctly. Although today’s smartphones are equipped with the best technology, a 90% damaged QR Code is still not readable. 

Always make sure that the QR Code is between levels M and H, and never H. 

17. What are the elements in a QR Code?

There are four main elements in a QR Code – 

1. Positioning marking 

This indicates the direction in which the QR Code is printed. This insinuates that even if your camera is tilted at an angle, it will still scan the QR Code. 

2. Alignment marking

This basically helps a QR Code with its alignment to be able to be scanned without any errors.

3. Timing pattern

This basically helps the QR Code scanner to gauge the size of the data matrix in the QR Code.

4. Quiet zone 

This is a vital part of a QR Code. A QR Code’s quiet zone helps differentiate the QR Code scanner from its surroundings.

18. How can I make my QR Codes more beautiful?

QR Codes can be made more beautiful by customizing the QR Code accordingly. Change the color of the data pattern, add a frame, CTA, logo, or a background image and change the modules accordingly to make the QR Codes more beautiful. 

Avoid the following protocols in order to deem it as unscannable – 

1. Always use contrasting colors for the background and foreground. Keep the foreground dark and background light
2. Do not add a lot of elements at once to avoid overcrowding
3. Use a short URL in place of a lengthy URL to minimize the data pattern on the QR Code
4. Add a CTA to make the QR Code distinct and let the users know what they are expecting
5. Use colors that suit your brand to keep it in line with the branding and a logo so users know what they are scanning
6. Change the modules if required 

Read how to fix a QR Code that isn’t working

19. Can QR Codes be white?

A QR Code can be white as long as the background is dark. Always remember to use contrasting colors when customizing a QR Code. 

For best results, always keep the foreground 40% darker than the background. 

20. Do QR Codes have to be black and white?

It’s a common myth that QR Codes have to only be black and white. You can change QR Codes to any color to make them look more appealing. As a rule of thumb, always remember to use contrasting colors to not interfere with the QR Code’s scannability. 

21. Can QR Codes be colored?

Yes, QR Codes can be colored, including their pattern, eyes, and even the background. Changing the QR Code to your brand’s colors make it more appealing to garner more scans and improve brand image. 

22. How does a dynamic QR Code work?

Dynamic QR Codes cannot be differentiated from static QR Codes, in terms of looks. However, the functionality differs drastically. 

For a dynamic QR Code to function as a dynamic QR Code, a short URL is assigned to the QR Code and separate landing pages are created based on the time, location, and device to be used. 

These dynamic QR Codes redirect the user to different landing pages based on the protocol set by the user on the dashboard. 

23. What is the cost of a QR Code?

Static QR Codes are absolutely free of charge. Dynamic QR Codes are free until the free trial period is over and once it is over, they are chargeable. 

At Beaconstac, dynamic QR Codes start from as low as $5.

24. Do QR Codes ever expire?

In the case of dynamic QR Codes, there is no limited scan-life and they do not expire. However, static QR Codes do expire, thus making it non-functional. When a static QR Code expires, it won’t redirect the user to a landing webpage, negating the entire purpose of a QR Code. 

Dynamic QR Codes also expire. However, they can be configured to point to another destination once the campaign is over. They are editable, retrievable, and can be used for multiple purposes with no expiration.

With static QR Codes, that is not the case.  

25. Who invented the QR Codes?

The QR Codes were invented by the Japanese company Denso Waves in 1994 to track vehicles during manufacturing for a unit of Toyota automobiles. They were designed to permit high-speed component scanning. 

26. Are QR Codes free for commercial use?

Yes. Once the QR Codes are downloaded, they can be used for any purpose, including commercial use. 

Using a dynamic QR Code will also be helpful in changing the data as and when required to suit the requirements of the company. 

27. What is a QR Code vector?

A QR Code vector is a type of QR Code that is used for high-quality print materials, tech uses, flyers, or large print materials such as billboards that can be scalable without losing its resolution. 

QR Code vector comes in the format of EPS, PDF, or SVG. 

28. What is a QR Code reader?

A QR Code reader is a tool that has the ability to scan and read a QR Code to unveil its contents. A good quality QR Code reader can read a QR Code of all sizes and quality, including any wear and tear. 

29. How do I create a QR Code with my logo?

To create a QR Code with a logo, go to Beaconstac’s free QR Code generator with logo select the type of QR Code to be generated and while customizing it, click on Upload Logo to upload the logo from your image gallery or select from the provided gallery to choose any of the icons to represent the accurate action. 

30. What mistakes should be avoided before creating a QR Code?

Smartphones these days are equipped with the most advanced QR Code readers. Nevertheless, these mistakes should be avoided before creating a QR Code – 

1. Make sure the quality of the QR Code downloaded is of good quality. For best results, download the QR Code in PNG format 
2. Make sure not to use inverted colors for the QR Code 
3. Do not print the QR Code in an extremely small size deeming it to be unscannable
4. Make sure the colors used are contrasting. Always use a dark foreground and a light background
5. Do not include a lot of details in the URL overcrowding the QR Code. Instead, use a short URL to make it look neat and precise
6. Do not create the QR Code using a poor quality QR Code generator 
7. Do not use a broken link. Always test the URL before generating the QR Code 
8. Avoid over customization of the QR Code 

PART 2 – The Technology of QR Code 

31. Can you reprogram a QR Code?

Yes, you can reprogram a QR Code. Reprograming a QR Code is nothing but changing the contents of the QR Code. However, only dynamic QR Codes can be reprogrammed and not static QR Codes. 

32. Can a QR Code be rotated?

Yes, absolutely. QR Codes are omnidirectional and can be scanned without any trouble from any angle. 

This is because QR Codes are included with a position detection pattern which helps the QR Code reader to recognize the correct orientation of the code. 

Each QR Code comes with three-position patterns (finder pattern) that are positioned at the three corners and one small square that is the alignment pattern. The alignment pattern helps QR Code readers to align and read the code without any difficulty. 

33. What is QR Code standardization?

QR Codes are standardized by Denso Wave to ensure that every QR Code created is interoperable. Below is a history of the standardization of QR Codes – 

1. October 1997 – QR Code was approved as AIM International (Automatic Identification International) standard (ISS-QR Code)
2. March 1998 – Approved as JEIDA (Japanese Electronic Industry Development Association) standard (JEIDA-55)
3. January 1999 – Approved as JIS (Japanese Industrial Standards) – JIS X 0510
4. June 2000 – Approved as ISO international standard (ISO/IEC 18004)
5. November 2004 – Micro QR Code was approved as JIS (Japanese Industrial Standards) standard (JIS X 0510)
6. December 2011 – Approved by GS1, which is an international standardization organization as a standard to all mobile phones

34. Are QR Code patterns the same for identical data?

Even if two QR Codes store identical data, the pattern might or might not be different depending on the QR Code generator used. 

The primary reason for the change is due to the internal expression of the QR Code (numeric code, alphanumeric code, and so on). If this expression varies, then the data pattern also varies. 

A QR Code stores data by following four kinds of modes – 

1. 10 characters – 0 to 9, in numeric mode 
2. JIS characters 8140h-9FFCh and E040h-EAA4h in kanji mode 
3. 10 characters – 0 to 9, in 26 characters, A to Z and 9 symbol characters (space, %, :, $, /, “) in alphanumeric mode 
4. 00h-FF h in 8-bit byte (binary) mode

35. How many characters can a QR Code hold?

A QR Code can store up to 4,296 characters or 7,089 digits in a single code, making it viable to hold large amounts of content. 

36. Can a QR Code store an image?

Yes, a QR Code can store an image or an image gallery. An image gallery QR Code allows users to open up an image gallery upon scanning the code. This type of QR Codes are lesser-known but are an extremely useful way to explain a product to enhance cross-selling. 

Image gallery QR Codes can be used in retail, real estate, automotive industry, and other marketing purposes. 

To create an image gallery QR Code for Pinterest, Instagram, and image sharing sites, 

Step 1- Copy the link from the above-mentioned sites

Step 2 – Paste it on the QR Code generator

Step 3 – Customize the QR Code 

Step 4 – Generate and test the QR Code before downloading it 

Step 5 – Download it in the required format – JPG, PNG, SVG, PDF, or EPS

Read more about image QR Code 

37. How to use a QR Code?

There are several use-cases to a QR Code. Here’s a list on how to use a QR Code –

1. Add contact details 
2. Make a call
3. Reveal discounts and coupon codes
4. Send predefined texts
5. Navigate to any location 
6. Send preset mails 
7. Add calendar events
8. Download apps
9. Connect Wi-Fi without a password
10. Engage with social media
11. Leverage it to start a marketing campaign
12. Use it a method for customers to leave reviews 
13. Payments 

A QR Code can be used for any and every possible function. 

38. What are the best free QR Code tools available in the market?

There are several parameters to follow when it comes to the best QR Code generators. 

The top six features to look for in a QR Code generator are – 

1. Types of QR Code available
2. Cost flexibility
3. Feature add-ons with paid QR Code subscription – Analytics, preset campaigns, tracking tools, and so on
4. Customization options
5. Robust experience
6. Security

Considering these vital features, Beaconstac’s QR Code generator is the best option in the market for creating all kinds of QR Codes. 

Part 3 – Types of QR Code

39. How do you create a QR Code for an app?

To create a QR Code an app, 

1. Open Beaconstac’s QR Code generator 
2. Under dynamic QR Codes, select App Download 
3. Enter relevant details under Setup 
4. Customize the QR Code and assign a short URL
5. Generate and test the QR Code 
6. Download the QR Code in your desired format 

Read more about App QR Code here

40. What is a vCard QR Code?

A vCard QR Code is nothing but a business card. Businesses of all sizes can leverage QR Codes on their cards instead of the traditional method of showing their work-related details. 

vCards offer a plethora of options ranging from saving the contact details directly in the smartphone to redistributing the details to retargeting. 

vCard Plus can also be edited and customized as and when the user needs it. 

41. How do I create a QR Code for a contact?

To create a QR Code for a contact, 

1. Open Beaconstac’s QR Code generator
2. Choose between static or dynamic QR Codes 
3. Click on vCard or vCard Plus depending on the type of QR Code chosen
4. Enter relevant details 
5. Customize the QR Code 
6. Generate and test the QR Code 
7. Finally, download the QR Code in the desired format 

42. What are the different types of QR Codes?

The different types of QR Codes are – 

1. vCard QR Code
2. Website QR Code
3. Email QR Code 
4. Call QR Code 
5. SMS QR Code 
6. YouTube QR Code 
7. Facebook QR Code
8. Video QR Code 
9. Coupon QR Code 
10. Location QR Code 
11. Image QR Code
12. Audio QR Code
13. Feedback QR Code
14. Restaurant Menu QR Code
15. Business Card QR Code 
16. PDF QR Code 
17. App Download QR Code
18. Social Media QR Code 

Here are some QR Code examples to know more about the types of QR Codes available

43. How many possible QR Codes are there?

There are more than 15 types of QR Codes that can be used for various purposes – omnichannel marketing, real estate, healthcare, brand marketing, and more. 

44. How to create a QR Code for a video?

To create a QR Code for a video, 

1. Go to Beaconstac’s QR Code generator 
2. Select between static or dynamic QR Code 
3. Select the Website QR Code to redirect the user to the video upon scanning the QR Code
4. Customize the QR Code and make sure to include a video sign as the logo
5. Generate and test the QR Code 
6. Download the QR Code  

The URL should contain a video or must redirect the user to YouTube to start playing the video. 

45. What is a PDF QR Code?

A PDF QR Code is a type of QR Code that can be downloaded for any PDF that is either online or offline. This PDF QR Code upon scanning opens up a PDF and does not require an additional app to be downloaded. 

PDF QR Codes can be created for menus, educational purposes, books, image galleries, and manuals. 

46. What is a micro QR Code?

A micro QR Code is a smaller version of the standard QR Code for applications where space is limited. There are four versions of the micro QR Code, the smallest being 11 x 11 modules, whereas the largest can hold up to 35 modules. 

47. What is an iQR Code?

iQR Codes are very similar to the normal QR Codes. But iQR Codes do have some differences –

1. iQR Codes hold a lot more data
2. iQR Codes do not look dense even if they hold a lot of data
3. iQR Codes also support a smaller minimum size 

Part 4 – Use cases of QR Codes

48. What is a QR Code payment?

QR Code payments are a type of contactless payment method where a transaction is done by scanning the QR Code displayed from a smartphone. 

QR Code payments are an alternative and easy way to electronic fund transfer during POS using a payment terminal. This payment method is secure and avoids clashing with other infrastructures involved, such as carrying the card, payment networks, and payment terminals.

QR Code payments are largely seen in retail, eCommerce, transportation, and logistics. Some of the brands leveraging QR Code payments are Amazon, Walmart, and Macy’s. 

49. Can I use QR Codes for events?

Yes. In fact, event QR Codes serve as an excellent tool for events. 

QR Codes can be used in multiple ways for events such as – 

1. To keep a track of attendees
2. For swift entering of an event by avoiding long queues by accepting QR Code tickets instead of regular tickets 
3. To keep the attendees up to date with the event 
4. To serve food and beverage 
5. To accept payment by installing QR Code-enabled payment systems 
6. To allow artist following
7. For discount and coupons 

Part 5 – Scanning ability 

50. Can Google scan QR Codes?

Google can scan QR Codes. 

There is more than one method to scan a QR Code using Google – 

Method 1 – Open Google Assistant and click on the Google Lens option located on the bottom right of the screen. Open Google Lens to scan QR Codes.

Method 2 – Open the Camera and point it at a QR Code to scan a QR Code and open its contents. 

Method 3 – Open Chrome and click on scan QR Code from the Settings option to scan a QR Code. 

Read more on how to create and use QR Codes on the Google Services QR Code generator

51. How to scan a QR Code on an Android phone without an app?

Smartphones with Android 9 and above have an in-built QR Code scanner in their cameras, thanks to Google Lens. 

To activate Google Lens, open the camera app and click on settings to activate Google Lens suggestions to scan QR Codes. 

For smartphones with Android 8, point the camera at a QR Code and long-press the home button, and click on ‘What’s on my screen?’ to see the contents of the QR Code. 

For smartphones with Android 7 and below, a separate third-party app is required to scan QR Codes. 

Pixel smartphones come with an in-built Google Lens option in their cameras. 

To scan with the camera, simply point the camera at a QR Code and click on the URL displayed by the QR Code. 

To scan a QR Code with Google Lens, open Google Assistant and click on the Google Lens symbol to activate it. 

Read more on how to scan QR Codes with an Android smartphone without an app

52. How to scan a QR Code with an app on Android and iOS devices?

Smartphones with the latest OS do not need a separate app to scan QR Codes. However, if your device isn’t updated, here are some of the best QR Code scanning apps for both Android and iPhone – 

1. Kaspersky’s QR Code Reader and Scanner 
2. NeoReader Barcode Scanner 
3. Bar-Code Reader 
4. QR Code Reader by Scan
5. i-Nigma 

Read more about the best QR Code scanning apps leading the pack in 2021

53. How to scan a QR Code with an iPhone?

With iOS 11, Apple introduced native QR Code readers in their range of smartphones in the camera, expelling the need to download a third-party app to scan QR Codes. 

With iOS 12 and 13, Apple added the QR Code reader in its Control Center for easy accessibility. 

To scan a QR Code with an iPhone, simply point the QR Code with the camera or click on the QR Code reader from the Control Center to read the contents of the QR Code. 

Read more about iOS 13 update here

54. Can I scan QR Codes on a desktop?

Yes, QR Codes can be scanned on a desktop. Some desktops such as Microsoft have an in-built QR Code scanner. 

In case your desktop does not have an in-built QR Code scanner, download a separate QR Code reader exclusively meant for desktops. 

1. Windows – To scan a QR Code using a desktop, open the webcam and point it at a QR Code. Make sure the QR Code is placed in the middle of the screen. 
2. Mac OS – Mac does not come with an in-built QR Code scanner and thus a QR Code can be scanned either via an app or an online QR Code scanner. 

Part 6 – Bonus QR Code FAQs 

55. How is a QR Code different from NFC Tags?

Although both the technologies store data, the use-case of QR Codes and NFC Tags differ along with the ability to open them. 

A QR Code must be scanned from a smartphone or a third-party app to open it whereas NFC is a smartphone-enabled feature that has to be tapped on another NFC-enabled product to open its contents. 

However, both QR Codes and NFC tags are used heavily for marketing. 

Read more about NFC Tags and QR Codes here 

56. Are QR Codes a thing of the past?

No. In fact, QR Codes are more on the rise now due to their hassle-free creation, versatile use-cases, and multi-purpose qualities. 

QR Codes are ubiquitous. They are used on billboards, flyers, menus, payments, ticketing systems, in airports, and in healthcare. Name the industry and the technology has penetrated. 

QR Codes are here to stay. The technology is easily read by all smartphones, easy to use, and is everywhere.  

57. Why are QR Codes so popular?

QR Codes are very popular because they are very easy to create and they can be used anywhere for any purpose. 

QR Codes over the past couple of years have gained maximum traction and are being used everywhere, but heavily for marketing. 

In addition to that, almost every smartphone is equipped with an in-built QR Code reader which has further propelled brands and businesses to leverage QR Codes for all kinds of uses. 

Read why 2021 is the year of QR Codes 

Want to create a QR Code to leverage it for a marketing campaign or a vCard or for any other purpose? Buy them here.   

• Author Details
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Author Details

Apoorva Hegde

Content Marketing Strategist – MobStac

Tech-aficionado, curious about all things related to marketing, and an ardent junkie of The Office.

[email protected]

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