What Is a QR Code?
A QR code (Quick Response code) is a two-dimensional barcode invented in 1994 by the Japanese company Denso Wave. Originally created for tracking automotive parts, QR codes have evolved into one of the most versatile data-sharing tools in the digital world. Unlike traditional barcodes that store data in a single horizontal strip, a QR code encodes data in a square grid, enabling it to hold dramatically more information.
A single QR code can store up to 7,089 numeric characters or 4,296 alphanumeric characters—ideal for URLs, contact details, Wi-Fi credentials, payment links, and any other text-based data. Scanners read these codes in milliseconds, making them one of the fastest bridges between the physical and digital worlds.
How to Create a QR Code in 3 Steps
- Enter your URL or text in the input field at the top of the page.
- Customize the appearance — choose the QR color, background color, output size (128 px – 512 px), and error correction level.
- Click Generate, then hit Download PNG to save a high-resolution image to your device.
No account, no watermarks, no waiting. Your QR code is ready in under a second and yours to use however you like.
10 Powerful Ways to Use QR Codes
Business CardsLink to your LinkedIn profile, portfolio, or digital vCard so contacts can save your details instantly.
Restaurant MenusReplace printed menus with a contactless digital version—easy to update, impossible to lose.
Product PackagingGuide customers to manuals, how-to videos, warranty registration, or review pages.
Event MarketingLink posters and flyers directly to ticket purchase pages or event schedules.
Wi-Fi SharingLet guests connect to your network without typing a long password.
Retail & PaymentsEnable contactless checkout or link to product pages from shelf labels.
EducationEmbed QR codes in textbooks or handouts to link to videos, quizzes, or supplementary reading.
Real EstateAdd to yard signs or brochures to direct buyers to listings and virtual tours.
Social Media GrowthPut QR codes on packaging and receipts to grow your follower count.
Email CampaignsPlace in newsletters or print ads to bridge offline and online touchpoints with UTM tracking.
Understanding Error Correction Levels
Error correction is what makes QR codes so reliable. Even if part of the code is dirty, torn, or partially obscured, the right level of error correction lets scanners reconstruct the original data. There are four levels:
| Level | Recovery capacity | Best for |
|---|
| L — Low | 7% of data | Clean indoor environments, digital screens |
| M — Medium | 15% of data | General-purpose use |
| Q — Quartile | 25% of data | Industrial or outdoor environments |
| H — High | 30% of data | Branded codes with logos overlaid |
Pro tip: Use Level H whenever you plan to overlay a logo on your QR code. The extra recovery capacity keeps the code scannable even with a portion of the pattern covered.
5 Tips for QR Codes That Always Scan
- Maintain high contrast. The dark modules must be significantly darker than the background. Avoid light-on-light or dark-on-dark combinations.
- Keep a quiet zone. Leave a white border at least 4 modules wide around the entire code. Most scanner apps need this margin to detect the code edges.
- Test on multiple devices. Scan your code on both Android and iPhone before printing or publishing—rendering engines differ.
- Use PNG, not JPEG. JPEG compression creates artifacts that can corrupt the pixel pattern. This tool downloads lossless PNG by default.
- Size for the scan distance. At minimum, print 2 cm × 2 cm for hand-held scanning. Scanning distance should be no more than 10× the code width.
Frequently Asked Questions
Are QR codes free to create?
Yes. This QR code generator is completely free. You can create as many QR codes as you need with no registration, no watermarks, and no hidden fees.
Do QR codes expire?
Static QR codes like the ones created here never expire. The code always resolves to exactly the URL or text you entered. Only dynamic QR codes—which redirect through a third-party service—can expire if that subscription ends.
What size should my QR code be for print?
Print at a minimum of 2 cm × 2 cm (≈ 0.8 in × 0.8 in) for scanning at typical arm's length. For signage, posters, or anything viewed from further away, scale up proportionally—the scanning distance should be no more than 10× the code's width.
Can I create a QR code for a PDF or document?
Yes. Upload your PDF to Google Drive, Dropbox, or any file-hosting service, copy the shareable link, and paste it into this generator. The QR code will point directly to that document.
What's the difference between a static and a dynamic QR code?
A static QR code (like those produced here) encodes your data directly into the pixel pattern. Once printed, the destination cannot be changed. A dynamic QR code points to a redirect URL managed by a third-party service, letting you update the destination after printing—but it requires a paid subscription.
How many characters can a QR code store?
A QR code can hold up to 7,089 numeric characters, 4,296 alphanumeric characters, or 2,953 bytes of binary data at the lowest error-correction level. Encoding a short URL is well within this limit.
What devices can scan QR codes?
Any modern smartphone can scan QR codes directly through the built-in camera app—no extra app needed on iPhone (iOS 11+) or most Android devices (Android 8+). Older devices may need a free QR scanner app from the App Store or Google Play.
Can I track how many people scan my QR code?
Static QR codes cannot be tracked on their own. For scan analytics, append UTM parameters to your URL before generating (e.g. ?utm_source=flyer) and measure visits in Google Analytics. For full scan-count tracking, use a dynamic QR code service.
How do I create a WiFi QR code?
Select the "WiFi" tab in the generator, enter your network name (SSID), password, and encryption type (WPA for most modern routers). Click Generate and download. Guests scan the code with their phone camera and connect instantly — no password typing needed.
Can I add my logo to a QR code for free?
Yes. Use the Logo upload section in the Style panel. Upload any PNG, JPG, or SVG file and the generator places it in the centre of the QR code. Error correction is automatically raised to Level H to keep the code scannable even with part of the pattern covered by the logo.
What is a vCard QR code?
A vCard QR code encodes your contact details — name, phone, email, company, website, and address — in a format smartphones import directly into the Contacts app. It replaces manual contact entry and is ideal for business cards, name badges, and email signatures.
Should I download my QR code as SVG or PNG?
Download PNG for digital use (websites, email, presentations, social media). Download SVG for anything going to print (business cards, signage, packaging, merchandise) because SVG is infinitely scalable without any quality loss. Both formats are free on this generator.
How to Create a WiFi QR Code
Sharing a Wi-Fi password by hand is error-prone — guests misread letters, confuse zeros and Os, and end up asking you to type it for them. A WiFi QR code fixes that: one scan and they are connected, no password visible, no typing required.
What you need
- Network name (SSID) — the exact name your router broadcasts, including capitalisation and spaces.
- Password — leave blank for open networks.
- Encryption type — WPA or WPA2 for any modern router; WEP for older devices; "None" for a fully open hotspot.
- Hidden network — tick this only if your router does not broadcast its SSID publicly.
Step-by-step
- Select the WiFi tab in the generator above.
- Enter your SSID and password exactly as they appear on your router label or settings page.
- Choose WPA (correct for the vast majority of home and business routers).
- Click Generate, customise the colours if needed, then download.
Recommended settings for printed signs
Use error correction Level M or Q for table cards or wall signs that may accumulate dust or minor damage. A 300 px output suits A5 cards; use 512 px or download as SVG for larger formats such as A4 posters or acrylic frames.
Popular use cases
- Café, restaurant, and hotel guest Wi-Fi cards at every table
- Airbnb and holiday rental welcome packs
- Office reception desks and meeting-room screens
- Retail stores with in-store customer Wi-Fi
- Event venues and conference centres
vCard QR Code: Create a Digital Business Card
A vCard QR code encodes your full contact record — name, phone, email, company, website, and mailing address — in a format that iOS and Android import directly into the Contacts app. One scan replaces the entire business-card exchange, with zero typos and instant save.
What a vCard QR code stores
- Full name (given name and family name)
- Mobile, work, or home phone numbers
- Email address
- Company or organisation name
- Website URL
- Mailing address
Why vCard beats paper
Information saved via QR scan is exact — no OCR mistakes, no illegible handwriting, no lost card. The contact lands in the recipient's phone searchable and immediately ready to call or email. Unlike a standard URL QR code that opens a website, a vCard code imports the data natively without requiring an internet connection at scan time.
Where to use your vCard QR code
- Printed business cards — place on the back alongside traditional details for a hybrid approach.
- Email signatures — embed as a small PNG image so recipients can scan from their desktop.
- Conference lanyards and name badges — speed up networking events dramatically.
- LinkedIn banners and personal portfolio sites — let visitors save your contact from any device.
- CV and resume PDFs — scannable by recruiters reviewing printed copies.
Pro tip: Download as SVG, drop it into Figma, Illustrator, or Canva, and embed it in your business card design. Set error correction to Level Q so the code survives minor printing imperfections or card wear.
How to Add a Logo to Your QR Code — Free
A QR code with a logo is instantly more trustworthy than a plain black-and-white square — users recognise your brand before they scan. This generator supports logo overlay at no cost; most competing tools charge a monthly subscription for the same feature.
How logo overlay works
QR codes store redundant data through error correction. When a logo physically covers part of the pixel pattern, the error correction algorithm reconstructs the obscured modules from the redundant copy. That is why we automatically lock error correction to Level H (30 % data recovery) the moment you upload a logo — the extra redundancy keeps the code reliably scannable.
Step-by-step
- Generate a QR code with the content you need (URL, WiFi, vCard, etc.).
- In the Style panel, scroll to Logo (optional) and click the upload zone, or drag and drop your file.
- Upload a PNG, JPG, WebP, or SVG file — the generator scales it to fit automatically and locks error correction to H.
- Click Generate to preview the branded result, then download as PNG or SVG.
Best practices
- Keep the logo within 25–30 % of the total code area. Larger logos risk blocking too many modules even at Level H.
- Use a logo with a transparent background (PNG). Opaque white or coloured backgrounds create a floating box that disrupts the code's quiet zone.
- Choose high contrast. A dark logo on a light QR background, or a light logo on a dark background, gives scanners the clearest signal.
- Simplify complex logos. Fine details are lost at the small size the logo occupies in the code; use a bold, simplified mark instead.
- Always test before printing. Scan the final result on at least two different devices — iPhone and Android — before sending files to a printer.
SVG vs PNG: Which QR Code Format Should You Download?
This generator provides both SVG and PNG downloads free of charge — most competitors put SVG behind a paid plan. Here is exactly when each format is the right choice.
PNG — best for digital use
PNG (Portable Network Graphics) is a lossless raster image. Every module in the QR code is stored at a fixed pixel resolution. This generator renders PNG at 2× the display size so codes appear sharp on retina and HiDPI screens without pixelation.
Use PNG when:
- Embedding in a website, blog post, or landing page
- Sharing via email, WhatsApp, SMS, or social media
- Adding to a Google Slides, PowerPoint, or Keynote presentation
- Uploading to a digital-only document or CMS platform
SVG — essential for print
SVG (Scalable Vector Graphics) describes shapes mathematically rather than as pixels. An SVG QR code scaled from a business card to a billboard remains perfectly sharp because the renderer recalculates every edge at the output resolution — there are no pixels to blur or blocky artefacts to appear.
Use SVG when:
- Sending artwork to a professional print shop or packaging manufacturer
- Placing on signage, vehicle wraps, merchandise, or exhibition stands
- Importing into Illustrator, Figma, InDesign, or CorelDRAW
- Creating any asset that will be reproduced at multiple sizes
The rule of thumb
Download PNG for screens. Download SVG for print. When in doubt, download both — they are both free on this tool.
WhatsApp QR Code Generator: Connect With One Scan
A WhatsApp QR code opens a chat with your number directly in the WhatsApp app — the person scanning does not need to save your contact first. You can also pre-fill a message so they arrive with context, making it perfect for customer service, lead capture, or event networking.
How it works
The generator creates a wa.me link using your phone number in international E.164 format (country code followed by digits only, no spaces or dashes). Scanning opens WhatsApp on mobile or WhatsApp Web on desktop. The optional pre-filled message appears in the text box, ready to send with one tap.
How to create yours
- Select the WhatsApp tab in the generator above.
- Enter your phone number with country code — for example,
+14155550123 for a US number or +447911123456 for a UK number. - Optionally add a pre-filled message (e.g. "Hi, I'd like to learn more about your services").
- Click Generate and download as PNG or SVG.
Use cases
- Customer support — let customers reach your team without having to find or save a number.
- E-commerce — add to packaging and receipts for post-purchase support and reviews.
- Events and networking — "Scan to chat" on lanyards and name badges replaces paper card exchanges.
- Creators and influencers — grow direct audience connection through WhatsApp Channels or Broadcasts.
- Real estate and services — scan to enquire from yard signs, property brochures, and vehicle signage.
Tips: Always include the full country code in E.164 format. Keep the pre-filled message short and natural — long automated-sounding openers reduce response rates. Test on both iPhone and Android before printing or publishing.
