Do you have questions about how QR codes work, what types exist or how to customize them? In this section we answer in a clear and simple way the most common frequently asked questions about QR codes to help you get the most out of them, whether for your business, events or marketing campaigns.
If you do not find the answer you are looking for, you can use the comments section to make a new question, or go to our forum QR codes and perform your query.
THE support forum to QR codes and bar codes is a new creation, but we recommend that you make you query on the forum , since this way we help the rest of the community by providing day-to-day greater knowledge , enriching the list of frequently asked questions.
Generic questions about QR
What is a QR Code?
QR codes are a type of two-dimensional barcode. The information is encoded inside a square of variable size, allowing to store a large amount of alphanumeric information.
What information can a QR code contain?
The information contained in a QR can be of many types and its reading from a mobile device, allows to perform actions automatically on the device itself. Our QR generator can create codes with the following types of information:
Free text
URL (Web address)
SMS
email (recipient, asusnto, message)
Phone number
Vcard (contact data to include in phonebook)
Geolocation (longitude and latitude data to mark a point e.g. on Google Maps)
Event (date, time and description of an event)
WIFI (data of connection to a WIFI network)
What can I use a QR code for?
QR codes have an infinite number of applications, in our blog you can find examples and articles in which we discuss many of the possible applications. Generally we can find QR in:
Coupons and discount vouchers.
Tickets for events
Advertising
Marketing campaigns
Merchandising
Graphic Design (posters, banners, flyers)
Corporate stationery (business cards, catalogs)
Internet, Websites, blogs
Is a BIDI code the same as a QR code?
Although QR codes are a type of BIDImensional barcode (i.e. the information is stored in a two-dimensional code), the term BIDI was first used by MoviStar for a type of code that it tried to implement (without great success) years ago under this name. The BIDI code used by Movistar was a Datamatrix type which is also a BIDImensional barcode but it was not a QR.
Questions about our Free Static QR Code Generator
How to generate a QR code with the free generator?
Easily, from our QR code generator you can create for free all the QR codes you need. Just fill in the fields corresponding to each type of QR code and then download the generated QR, it’s that easy!
Is there any cost to use your QR generator?
No, not at all. The QR code generator that we put at your disposal is completely free. You can generate free QR codes without expiration. If you want to generate dynamic QR then if you must hire a plan.
Do static QR codes have an expiration date?
No, the QR codes generated with our free generator have no expiration date. Once downloaded they are valid indefinitely.
Can I use the generated QRs for commercial purposes?
Yes, of course. There is no limitation in the use of our generator. It’s free and you can download the generated codes and use them for your campaigns, brochures, cards, flyers, etc…
Can I change the content of a static QR?
The content of static QR codes are data that were used for its creation and can not be changed or modified. The ability to change the content and even the type of QR is a feature of dynamic QR codes. This type of dynamic QR is available in our subscription plans and allow you to change both the content and the type of QR.
You can test these advanced features in our new BIDIQR generator.
Are the static generated QR codes stored?
No, Free QR codes are generated on the fly and served without being stored in Codigos-QR. They are generated “on the fly” so that you can download them on the fly.
Questions about personalized QR codes
Do QR codes have to be black and white ?
No. It is not mandatory. Black and white QRs are the most reliable to read even with low performance terminals, but it is possible to use colors in QRs as long as they keep a good contrast ratio between the background and the pixels.
Can a logo or an image be added to the QR code?
Yes, it is possible to make modifications on a QR to insert a small logo or image. This is possible because you can generate QR codes with a larger size and a higher level of error correction and take advantage of small areas of the QR to insert the image. If any type of modification is made, it is highly recommended to test read the code to ensure proper functionality.
Do customized QR codes work the same as regular QR codes?
Yes, they work exactly the same. You can scan them with any reader or mobile camera. You just have to make sure that the contrast and size are correct.
Can a customized QR be printed in any size?
Yes, it is recommended to download the QR in SVG vector format that allows scaling without losing quality. The QR must have a minimum size (recommended: 2×2 cm or more) to ensure its correct reading. Contrast is also key for good scannability.
What are the advantages of a customized QR over a regular QR?
Personalized QR conveys brand image and professionalism and distinguishes it from the rest. If it is also dynamic, it offers analytics, post-editing, greater control and flexibility.
Frequently asked questions about dynamic QR codes
What is a dynamic QR code?
A dynamic QR code is a type of QR code that allows you to modify the destination URL without changing the physical printed code. It also allows you to access scanning statistics such as location, date, device and other advanced features.
What is the difference between a dynamic QR and a static QR?
The static QR contains a fixed and immutable URL. In contrast, the dynamic QR redirects through a server, allowing you to modify its destination after creating it and collecting metrics.
Can I change the content of a dynamic QR after printing it?
Yes, that is its main advantage. You can update the link or the associated content from your control panel without reprinting the code.
Can a dynamic QR be used without an internet connection?
No. Since the code redirects through a server, a connection is required for the scanner to access the content.
Where can I use dynamic QR codes?
They are ideal for marketing campaigns, print advertising, packaging, digital menus, business cards, signage, events and much more.
Do dynamic QR codes have an expiration date?
Our dynamic QR codes are subject to subscription plans and remain operational as long as the subscription is contracted.
Can I create many dynamic codes at the same time?
Our generator allows batch creation or mass import, ideal for agencies, products or multichannel campaigns.