arrow Go back to list of posts
Qr code

Testing Speed and Accuracy of Online QR Code Scanners

January 9, 2025
blog main image

QR codes are used widely in modern digital interactions. They are used to access websites, make payments, share content, provide digital menus, and more.

A reliable QR code scanner is necessary to ensure smoother operations. However, not all are created equal. To help you select a reliable QR code scanner, I have decided to personally test a few popular ones based on their speed and accuracy.

So, in this guide, I will provide a detailed walkthrough of my testing process. I will present my findings for each tool as well as a detailed comparison. Read on!

Imagetotext.info QR Code Scanner

qr code scanner

Imagetotext.info is a free image to text conversion tool. It provides its users with a QR Code Scanner for easy data extraction from a QR code.

This tool is designed to be quick and easy to use. I uploaded a high-resolution image of a QR code, and the tool scanned it almost instantly. The total scanning time was even less than a second. This was impressive for a free online tool.

The speed didn’t vary much between different types of QR codes, whether it was a piece of text, a simple URL, or a more complex contact QR code. 

The accuracy of this tool was consistently high. It correctly decoded any type of QR code I gave it without any errors.

qr code scanner software

The URL QR code was decoded correctly, and the browser opened the corresponding webpage without issues. The same goes for the QR code with contact information or text. 

One thing worth noting is that the scanner handles even low-contrast or slightly blurred QR codes better than expected. 

I tested a slightly lower-quality QR code, and it was still able to retrieve the correct information. This means the tool is reliable enough to be used in real-world scenarios.

Imagetotext.io QR Code Scanner

qr code scanner

Imagetotext.io QR code scanner works for all types of QR codes. It has a user-friendly interface that is easy to navigate and usable by anyone of any skill level. 

One feature that makes this tool stand out is the history viewing option. If you have scanned multiple QR codes that are saved on the tool, you can access them anytime, anywhere. However, make sure you log in to use this feature fully. 

That said, let me talk about the speed. As I upload/scan the QR code, it takes less than a second to decode it and show me the saved information. To be precise, it would be about 0.3 to 0.4 seconds. Yes, you heard. This tool takes this much time. 

Along with the processing speed, it doesn’t even make it a MUST to login or sign up first (although this option is available). This further makes using this tool fast. 

To test accuracy, I have used the same set of QR codes as I did for the previous tool. Interestingly, it decoded all the codes correctly, whether they contained a URL, text, or contact information.

qr code scanner

If the QR code directs to a URL, I can simply click on ‘Redirect Icon’ from the result box and directly open the extracted link in a new tab. No need to copy or paste the URL manually!

Minifier.org QR Code Scanner

QR Code scanner

Minifier.org is primarily known for its file compression and minification tools, but it also offers a QR code scanner as part of its suite of services. 

Although not as well-known as the other two, it does provide a straightforward QR code scanning solution that works directly from the browser.

But again, I am not here to test which tool is more famous but to see which one performs well in terms of speed and accuracy. So far, I have had positive results from this tool. 

This tool takes almost the same amount of time to decode a QR code as the other tools on the list, which is about 0.2 to 0.3 seconds in most tests. As I submit the code into the tool, the decided version is waiting for me, even in less than a blink. 

So, in terms of processing speed, I found no difference from the other tools. 

What about the accuracy? Well, I would have to think a bit here. The QR code-reading accuracy isn’t as impressive as the other two tools, but it is still reasonable. 

This tool works best for all the QR codes that contain simple URLs, text, and URLs with embedded metadata. The only QR codes it missed (only a few times) are the complex ones—with embedded special characters. 

Remember, it extracted the information completely fine, but the formatting was a bit off. 

Comparison Table

comparison table

Conclusion

All three QR code scanners tested—Imagetotext.info, Imagetotext.io, and Minifier.org—performed well, but with some differences.

Imagetotext.info stood out for its speed, accuracy, and ability to handle low-quality or complex QR codes. Imagetotext.io was impressed with its user-friendly interface and history feature. Minifier.org was fast but struggled slightly with complex ones. 

Which one suits you depends on your needs. All are good for me, but you have to consider your needs and go for the one that fulfils them. 

Frequently Asked Questions

If you are hesitating, do not worry - we are here to explain everything you might want to know. Let us help!

  • What is a digital business card?

    A digital business card is a modern and innovative way to exchanging contact information instantly via a scannable QR code, field communication NFC, or a simple link. Unlike paper cards, an NFC digital business card allows you to update contact information like your phone number or social media profiles in real time, add interactive business card features, and reduce your environmental impact with a custom nfc business card.

  • What can I include in my digital business card?

    Your electronic business card, should contain your full name, job title, company name, and essential contact information such as email and phone number. You can also add social media links to your social media profiles, communication channels like WhatsApp or Calendly, custom buttons, and even video content. With KADO, you can fully customize your smart business cards design, including colors, logos, and company branding for a custom nfc business card with advanced business card features.

  • Can I create a digital business card for free?

    Yes! KADO offers a free version that lets you create your card business cards from scratch, add links, and share your details digitally via a scannable QR code. The free plan includes basic features, while advanced customization options like color themes and premium integrations are available in the paid plans. You can create your digital business card for free here..

  • How to create a digital business card with QR code?

    Every KADO digital business card automatically includes a scannable QR code that can be scanned to instantly share your details. You can find your QR code in the app, under the "Exchange" section, or access it through your web profile. For more information on how to create business cards online, visit our website. Every KADO NFC digital business card automatically includes a scannable QR code that can be scanned to instantly exchanging contact information. You can find your QR code in the smart business cards app, under the "Exchange" section, or access it through your web profile. For more information on how to create best nfc business cards online, visit our website.

  • What is the best digital business card app?

    There are many options, but KADO stands out due to its unique features and enterprise capabilities:

    • It supports video, personalized buttons, and links—even in the free tier.
    • It integrates natively with HubSpot, Salesforce, and Microsoft Dynamics for seamless contact management.
    • It offers full design customization, including colors, logos, and company branding.
    • It is built for enterprises, offering advanced security, role-based access control, and an admin dashboard for managing team-wide digital business cards.

  • Is my data safe with KADO?

    Absolutely. KADO ensures maximum security by using encrypted cloud storage, role-based access control, and eliminating public IPs that could compromise your data and contact information.

  • Is KADO suitable for businesses?

    Yes! KADO is designed to scale for businesses of all sizes, offering centralized contact management, company-wide card digital business card distribution, and role-based permissions to protect sensitive company data

  • How to create an NFC business card?

    KADO offers NFC-enabled digital business cards that allow you to share your details by simply holding the code business card up to a compatible smartphone. Unlike traditional business cards, these eliminate the need to scan the QR code or manually enter contact information. You can request your NFC business card directly on our website. KADO offers NFC digital business cards that allow you to exchange contact information by simply tapping the card with an NFC chip up to a compatible smartphone, such as an Android phone. Unlike paper cards, these best NFC business cards that eliminate the need to scan the QR code or manually enter contact information. You can request your custom nfc business card directly on our website, leveraging nfc technology for seamless business card features.

  • Do I need an app to use KADO?

    No, KADO works perfectly on mobile and desktop browsers, allowing you to share your virtual business card without downloading an app. However, for advanced features, KADO’s digital business card app lets you save your card QR code in a digital wallet, quickly access your created QR code, and share your details even without an internet connection.

  • How can I share my KADO digital business card?

    You can share your KADO digital business card in a variety of ways, making it easy to connect with others. The most common methods include showing the QR code for scanning, sharing your unique link via email or text, or using an NFC card. The main advantage is that the recipient does not need an app to receive or save your contact information.

  • Does KADO integrate with my CRM?

    Yes, KADO offers CRM integrations to improve your workflow. KADO CRM integrations include HubSpot, Salesforce, and Microsoft Dynamics, allowing for automatic contact syncing and interaction tracking.

  • Can I use my KADO digital business card without an internet connection?

    Yes! If you have saved your digital business cards saved in your mobile wallet or as a widget on your device, you can still share your information via QR code even without an internet connection. This allows you to always be ready to network, whether you are at an event, or not.

👉 Start for Free