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Guides and resources on QR codes for businesses
Learn to use dynamic QR codes to cut costs, measure campaigns and connect your physical materials with the digital world.
- qr-codebidi
QR code vs BIDI code: what's the difference and which to use in 2026
BIDI codes and QR codes look alike at a glance: both are square patterns of dots you scan with your phone. But they are different technologies. QR is an open, free international standard. BIDI was a closed system that Movistar launched in 2008, and today almost nobody uses it. This guide explains the real differences, and why, if you are choosing between the two in 2026, the answer is almost always QR.
5 minRead - hair-salonbeauty
QR codes for hair salons: service menu always visible from the window
A QR code in the window or on the mirror of a hair salon displays the service menu with prices, the appointment booking button and Google reviews. Customers can check it while waiting or from the street before entering.
4 minRead - hotelhospitality
QR codes for hotels: room service information always up to date
A QR code in a hotel room can display the room service menu, WiFi password, breakfast schedule, extension directory and spa services. All from a single landing page the hotel updates without reprinting anything.
5 minRead - packagingmanufacturers
QR Codes on Product Packaging: Guide for Manufacturers and Brands
A QR code on product packaging connects the buyer to content that does not fit on the label: usage instructions, videos, warranty registration, reviews or the online store for a repeat purchase. This guide covers placement, size, content and measurement.
5 minRead - paymentsbank-transfer
QR Code for Payments: Receive Bank Transfers and PayPal Without Typing
A payment QR code encodes the data needed for the customer to start a transfer or payment without typing anything. Depending on the method (SEPA transfer, PayPal), the QR opens the app directly with the fields already filled in.
5 minRead - linkedinprofessionals
QR code for LinkedIn: share your professional profile in one scan
A LinkedIn QR code encodes your profile URL. When scanned, the LinkedIn app opens with your profile, or the browser opens if the app is not installed. No need for the contact to search your name among thousands of results.
4 minRead - dynamic-qrshort-link
Dynamic QR vs short link: differences and when to use each
A dynamic QR and a short link (like bit.ly) appear to do the same thing: they redirect to a final URL you can change. But they serve different contexts and have different implications for analytics, privacy and format.
6 minRead - youtubevideo
QR Code for YouTube: take your channel to any printed material
A YouTube QR code encodes the URL of your channel or a specific video. When scanned, the YouTube app opens directly if installed, or the browser opens instead. The customer does not need to search by name or type anything.
4 minRead - google-mapslocation
QR Code for Google Maps: your address straight to the customer's phone
A Google Maps QR code encodes the URL of your Google My Business listing or the coordinates of your location. When scanned, Google Maps opens with your location marked and the Get Directions button active.
4 minRead - ecommercepackaging
QR Code for Online Store: Connect Physical Product to Your Website
A QR code on packaging or at the point of sale takes the buyer directly to the product page, reviews, usage instructions or your online store. Without them having to search for the brand or copy a URL.
5 minRead - custom-qrdesign
How to Customise a QR Code with Your Brand Colors
A QR code customised with your brand colors scans just as reliably as a black-on-white one, as long as you respect the contrast ratio, the quiet zone and the error correction level. This guide explains what you can change and what you cannot.
5 minRead - print-advertisingmarketing
QR codes in print advertising: how to measure offline traffic and find out which pieces work
Print advertising has had a long-standing problem: you cannot measure it precisely. QR codes change that. A code on a flyer, a billboard or packaging connects the physical medium to a trackable URL, and if it is dynamic you can also change the destination without reprinting. This guide covers the concrete steps to integrate QR codes into each type of print medium and measure what happens afterwards.
5 minRead - eventsconcerts
QR Codes for Events and Concerts: Complete Guide
Events have dates that shift, venues that change and tickets that sell out. A dynamic QR on the poster absorbs all those changes without reprinting. This guide explains which QR codes a well-managed event should use.
6 minRead - roidynamic-qr
ROI of dynamic QR codes: how to calculate whether they pay off compared to reprinting every season
The question every business asks before switching to a dynamic QR is simple: how much does reprinting cost me, and how much does the [Pro plan](/en/pricing) cost? If the first exceeds the second, the [dynamic QR codes](/en/qr-codes-generator/dynamic) are profitable. This guide does the sums with real numbers for the most common case, the restaurant with a seasonal menu, and extends it to events, packaging and barcodes.
6 minRead - pdfdocuments
QR Code for PDF: share documents without sending files
A QR code for PDF encodes the public URL of a PDF file. When scanned, the PDF opens directly in the mobile browser. It is always the current version, without sending the file by email or WhatsApp.
4 minRead - nfcqr
QR vs NFC: when to use each technology and which suits your case
QR and NFC share the same goal of connecting a physical object with digital content, but they work differently and have very different costs. A QR code prints for free on any paper. NFC requires a chip per unit costing between 0.10 and 2 euros. This guide explains when to use each and why, in most cases, a QR is sufficient.
5 minRead - vcardbusiness-card
QR code for digital business card: how to create a vCard that saves itself to the address book
A business card with a QR code lets the contact save your information to their address book with a single scan, without typing anything. The secret is in the right type of QR: one of the vCard type that creates the contact directly on the phone, not a link to a website the user has to save manually. This guide explains how to create it, what data to include and where to place it.
5 minRead - analyticsdynamic
How to measure how many scans a QR code has
A static QR cannot measure scans because it does not go through any server. A dynamic QR can: every scan generates a record with country, city, device and time. This guide explains what data is obtained and how to use it.
5 minRead - ecommercereturns
QR codes in e-commerce: how to add QR to delivery notes, returns and packaging
E-commerce generates paper with every order: the delivery note, the instructions, the returns form, the 'thank you for your purchase' card. A QR on each of those documents turns that paper into an active, measurable communication channel. This guide covers four concrete uses with instructions for implementing them without changing your shop platform.
5 minRead - vcardprofessionals
QR vCard: free digital business card
A QR vCard encodes a standard contact file. When scanned, the phone offers to save the contact in the address book with all fields: name, phone, email, company, website, address and photo.
5 minRead - pharmacyhealth
QR codes for pharmacies: 5 concrete uses that improve the customer experience
Pharmacies manage hundreds of product references and generate vast amounts of paper every year: patient information leaflets, product data sheets, instructions for medical devices, loyalty registration forms. A [dynamic QR code](/en/qr-codes-generator/dynamic) resolves each of these points with no recurring printing cost: the physical code stays the same; the content is updated from the dashboard.
5 minRead - hotelshospitality
QR codes for hotels: 5 uses that improve the guest experience from day one
A hotel generates dozens of documents per room: a room service menu, WiFi instructions, a services guide, pool rules, local tourist information. Most are printed on paper or plastic cards that go out of date and end up in the bin. One dynamic QR per category reduces that pile to a single code per topic, editable from the dashboard without reprinting anything.
5 minRead - wifitutorial
QR code for WiFi: connect without showing the password
A WiFi QR code encodes the network credentials in a format recognised by iOS and Android. When scanned, the phone offers to connect directly to the network without the user having to see or copy the password.
4 minRead - ab-testingdynamic-qr
A/B testing with dynamic QR codes: how to compare two destinations and measure which works better
An A/B test with dynamic QR codes works like this: you create two codes pointing to two different destinations, distribute them across two equivalent groups (two tables, two batches of flyers, two shops) and compare the scans and conversions from each group. No plugins or testing platforms needed: just two [dynamic QR](/en/qr-codes-generator/dynamic) codes and their analytics.
5 minRead - printingsize
What size should a QR code be for printing
The size of a QR code for printing depends not on the content but on the distance from which it will be read. This guide gives exact dimensions for each type of print material.
5 minRead - utmgoogle-analytics
QR codes with UTM parameters: how to measure your campaigns in Google Analytics
Adding UTM parameters to the URL of a QR code is the most direct way to measure in Google Analytics where scans come from. But there are two ways to do it, with different advantages: embedding the UTM directly in the URL of a static QR, or using a [dynamic QR with own analytics](/en/qr-codes-generator/dynamic) that logs scans before redirecting. Knowing the difference saves you dirty data in GA4.
6 minRead - printingdesign
Minimum size of a QR code: how big it needs to be to scan reliably on any medium
The minimum size of a QR code depends on three factors: the distance from which it will be scanned, the type of surface it is printed on, and the error correction level selected. A 2 cm x 2 cm QR works on a business card read at 15 cm but fails on a street poster at 1 metre. This guide gives the specific measurements for each case.
5 minRead - instagramsocial-media
QR Code for Instagram: Link Your Profile with a Code
An Instagram QR code encodes the URL of your profile. When scanned, it opens the app directly on your profile or the browser if the app is not installed. The customer does not have to search for your handle or type anything.
4 minRead - typesguide
Types of QR Codes: All 16 Available and Which to Use for Your Case
Not all QR codes are the same. A URL QR is different from a WiFi QR, and both differ from a vCard QR. Choosing the right type from the start avoids creating a code that does not work for what you need.
8 minRead - apiintegration
QR Code API: how to integrate generation into your web app
The codigo-qr.es REST API lets you generate, update and analyze QR codes directly from your application, without going through the dashboard. You can automate QR creation for invoices, digital menus or event tickets, and change the destination of a dynamic QR in production without touching the printed code. The public endpoint works without sign-up. The full API, with CRUD and statistics, requires a Pro plan.
7 minRead - qr-personalizadologo
How to make a QR code with logo for free
Adding your company logo to a QR code is possible, free and requires no design skills. But there is a technical detail most people miss: if the logo covers too many modules, the code stops working. This guide explains how to do it right.
5 minRead - whatsappsocial-media
QR Code for WhatsApp: create yours in 2 minutes
A WhatsApp QR code opens a chat with your number directly when scanned. The customer does not need to save the contact or type the number. It can include a pre-filled message so the conversation starts exactly where you need it.
4 minRead - comparisonalternatives
What codigo-qr.es has that paid competitors don't
There are more than a dozen tools for generating QR codes. Most have a homepage that looks identical: generator in the center, one-click download, confusing pricing. The real differences only show up after three months of daily use. This article lays them out clearly.
6 minRead - packagingproduct
QR Code on Product Packaging: Practical Guide for Brands and Manufacturers
A QR on your packaging turns the unboxing moment into a business opportunity: warranty registration, assembly instructions, Google review, cross-sell of complementary products. With a dynamic QR, the content can be updated without reprinting the packaging even if the product is already in stores.
6 minRead - barcodesean13
EAN-13, Code 128, GS1-128: Complete Barcode Guide for Businesses
Not all barcodes serve the same purpose. EAN-13 is mandatory for selling in supermarkets. Code 128 is free and perfect for internal use. GS1-128 is the traceability standard in pharma and food. Choosing the wrong one can cost you entry to a distribution chain or a customs rejection.
9 minRead - dynamic-qrtutorial
What is a Dynamic QR Code and How Does It Work?
A dynamic QR code encodes a short URL managed by a server instead of the final destination. When someone scans the code, the server checks the current destination and redirects in milliseconds. This allows you to change where the QR points at any time, without modifying or reprinting the physical code.
5 minRead - businessmarketing
8 Uses of QR Codes for Businesses That Generate Real Results
QR codes have moved beyond a passing trend. In 2024, 89% of consumers in Spain used their phone camera to scan a QR at least once a month, according to Statista data. For businesses, the dynamic QR (editable and with analytics) has become a measurable, low-cost marketing tool.
8 minRead - restauranthospitality
QR Code for Restaurant Menu: How to Do It Right and Never Reprint Again
A dynamic QR for your restaurant menu points to your digital menu. When you update a price or add a dish, you update the destination from the dashboard and the next customer who scans already sees the change. No reprinting, no sticker replacing, no print shop cost.
6 minRead - dynamic-qrstatic-qr
Static vs Dynamic QR Codes: Which Does Your Business Need
A static QR code embeds the data directly: if you change the URL, you need to reprint. A dynamic QR points to an editable intermediate link managed from a dashboard, you change the destination in seconds without touching the physical code. For businesses with printed materials, the difference can mean hundreds of euros saved every year.
7 minRead