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QR Code Generator

Create QR codes for free. URLs, text, Wi-Fi passwords, whatever. Instant generation, right-click to download.

QR Code

What Are QR Codes?

QR codes are those square barcodes you scan with your phone. They can store URLs, text, Wi-Fi passwords, contact info - basically any text data. Point your phone camera at one and it instantly opens the link or shows the info.

They're everywhere now - restaurant menus, business cards, product packaging, event tickets. Way easier than typing out a long URL or Wi-Fi password. Just scan and go.

This tool generates standard QR codes using a free API. Type your text or URL, click generate, right-click the image to save it. No watermarks, no expiration, no tracking. Just a QR code.

💡 Expert Tips

Test Before Printing Thousands

Print one QR code at the actual size you plan to use, then test it with multiple phones. Make sure it scans easily from a normal distance. QR codes that work great on screen can fail when printed too small or on glossy paper.

Shorter URLs Scan Better

Long URLs create denser, more complex QR codes that are harder to scan. Use a URL shortener (bit.ly, tinyurl, etc.) first to keep your QR code simple and reliable. Simpler patterns = faster scans = happier users.

Add Context (People Don't Trust Mystery QR Codes)

Put text near your QR code saying what it does. "Scan for menu" or "Join our Wi-Fi" or "Visit our website." Nobody wants to scan a random QR code that could be anything. Tell them what they're getting.

— Dr. Alex M., Ph.D., Technical Specialist

⚠️ Common Mistakes

Printing QR Codes Too Small

"I'll save space by making it tiny!" - then nobody can scan it. Minimum 2cm × 2cm (0.8 inches). Smaller than that and most phones struggle to focus and read the pattern. Bigger is always better for reliability.

Real consequence: Your expensive printed materials are useless because the QR code doesn't work.
Fix: Print a test at actual size. If you have to hold your phone perfectly still or try 10 times, it's too small.

Linking to URLs That Change or Disappear

QR codes on printed materials last forever, but your website might not. You redesign your site, change your URL structure, move pages around - suddenly all your printed QR codes lead to 404 errors. Can't update a QR code once it's printed.

How to avoid: Use a URL shortener or create permanent redirects. Even if your site changes, the short URL stays the same.

Putting QR Codes Where People Can't Scan Them

On billboards while driving (dangerous and illegal in many places). On TV ads (gone before you can grab your phone). On the side of a moving bus. Be realistic about when and how people will actually scan it.

Better placement: Business cards, posters, menus, product packaging - anywhere people can take their time to scan.

How to Use This Generator

  1. Enter Your Text/URL: Type the URL, text, or data you want to encode. Keep it short if possible.
  2. Click Generate: QR code appears instantly below the button.
  3. Download: Right-click the QR code image and "Save image as..." to download it.
  4. Test First: Print it at your intended size and test scanning with your phone before mass production.

Common Use Cases:
Restaurant menus: Link to digital menu instead of printing new menus
Wi-Fi sharing: Format: WIFI:T:WPA;S:NetworkName;P:Password;;
Business cards: Link to your website or LinkedIn
Event tickets: Encode ticket info for easy check-in

Embed This Generator

Add this free QR code generator to your website:

<iframe src="https://calcs.top/tech/qr-code-generator/" width="100%" height="700" frameborder="0"></iframe>

Frequently Asked Questions

Are QR codes free to create and use?

Yes, completely free. QR codes are an open standard - anyone can generate them and use them anywhere. This tool makes QR codes for free, no watermarks, no expiration, no sign-up. Generate all you want.

Do QR codes expire or stop working?

The QR code itself never expires - it's just an image. But if the QR code points to a URL and that website goes down or changes, the QR won't work anymore. The code is permanent, but the link it points to might not be.

Can I use these QR codes commercially?

Yes. Use them on products, business cards, flyers, menus, whatever. QR codes are public domain. The only limitation is if you're linking to copyrighted content - the QR code itself is fine, but make sure you have rights to the content it links to.

What size should I print my QR code?

Minimum 2cm × 2cm (about 0.8 inches) for reliable scanning. Bigger is better - 3-4cm works well for business cards, 10cm+ for posters. Test it at the actual print size with your phone before printing thousands of stickers.

Why won't my phone scan the QR code?

Most common issues: printed too small, bad lighting, damaged/blurry print, or your phone camera needs to be closer/further away. Try adjusting distance and lighting first. Also make sure your phone's camera app has QR scanning enabled (most do by default).

Reviewed by Dr. Alex M., Ph.D.
Technical Specialist | Updated November 2025

Dr. Alex ensures the QR code generation uses standard formats and follows current best practices for scanability and reliability.

References & Resources