A QR (Quick Response) code is a type of 2D barcode that can store data such as URLs, text, contact information, Wi-Fi credentials, and more. It can be scanned using smartphone cameras or QR code scanners.

You can use QR codes for:
- Website links
- Contact information (vCards)
- Event details
- App downloads
- Wi-Fi network sharing
- Payments and donations
- Location sharing
- Social media profiles

Yes, most QR code generators allow you to create basic QR codes for free. Advanced features like analytics, dynamic QR codes, or custom designs may require a subscription or payment.

-Static QR Code: Once created, the data cannot be changed.
- Dynamic QR Code: You can update the content later without changing the QR code image. These often come with tracking and analytics features.

Most smartphones have built-in QR code readers in the camera app. Simply open the camera, point it at the QR code, and tap the notification that appears.

Yes! You can change colors, add logos, adjust the design, and choose different patterns. However, make sure the code remains scannable.

QR codes themselves are safe, but they can lead to malicious websites. Always verify the source before scanning, and use a QR scanner that shows the URL before opening it.

-Static QR Codes: Never expire.
- Dynamic QR Codes: May expire depending on the service provider or plan.

Only dynamic QR codes can be tracked. With them, you can monitor scan counts, locations, devices, and more through analytics dashboards

It depends:
- If the QR code links to online content (like a website), you’ll need internet.
- If it stores data directly (like plain text or contact info), no internet is required to view the content after scanning.