QR Codes (Quick Response Codes) have become an indispensable tool in business, marketing, and daily life. From restaurant menus and namecards to advertising campaigns — QR codes bridge the physical world with digital content in a single scan.
In this article, you will learn how to create free QR codes with Metoolzy — from choosing the code type, entering data, and customizing the design, to downloading high-quality files.
A QR Code is a two-dimensional barcode invented by Denso Wave (Japan) in 1994. Unlike traditional barcodes that can only hold a few dozen characters, a QR code can store up to 4,296 characters, including URLs, text, contact information, and many other formats.
According to Statista, global QR code scans increased by 57% between 2023–2025. Especially in Vietnam, QR codes are widely used for payments (VNPay, MoMo), restaurant menus, and offline-to-online marketing.
Metoolzy supports the 7 most popular QR code types, each optimized for a specific use case:
| Type | Purpose | Example |
|---|---|---|
| URL | Directs to a website | https://metoolzy.com |
| Text | Displays text | Promo code: SALE50 |
| Pre-fills an email | Send feedback to support@ | |
| Phone | Quick dial | Support hotline |
| WiFi | Automatic WiFi connection | Café WiFi for guests |
| SMS | Quick SMS compose | Register service via SMS |
| vCard | Electronic business card | Share full contact info |
Tip: If you are unsure which one to choose, start with URL — this is the most common type and works with all scanning devices.
After choosing the QR code type, the input form will change accordingly. A few important notes:
Metoolzyhttps://. Example: https://metoolzy.com instead of metoolzy.comQR codes do not have to be black and white. You can customize them to match your brand:
Important note: Always ensure a minimum 40% contrast between the foreground and background. If the contrast is too low, many scanning apps will not be able to read the code.
Metoolzy offers 3 ways to get your QR code:
| Criteria | Static QR Code | Dynamic QR Code |
|---|---|---|
| Change content after creation | No | Yes |
| Track scans | No | Yes |
| Code complexity | Depends on content | Always simple (uses short URL) |
| Cost | Free | Usually paid |
| Best for | WiFi, vCard, fixed text | Marketing campaigns, changing menus |
Currently, Metoolzy provides free static QR codes. The dynamic QR code feature is in development and will be released soon.
No. Static QR codes generated by Metoolzy will work forever — the data is encoded directly into the image and does not rely on any server.
No. You can create an unlimited number of QR codes, completely free, with no account registration required.
Up to about 4,296 alphanumeric characters or 2,953 bytes of data. However, the more content there is, the more complex and harder to scan the code becomes. It is recommended to keep content under 300 characters for the best scanning performance.
Absolutely. QR codes created on Metoolzy have no watermarks and you have full rights to use them for any purpose — personal or commercial.