Question 1

How do you make a QR code for free?

Accepted Answer

Go to qrth.is, paste the URL you want to encode into the input box, and click 'Generate QR code'. Download as PNG or SVG. Total time: about 10 seconds. No signup, no email, no watermark. The image is yours to use commercially, in print, anywhere.

Question 2

What URL should I use when making a QR code?

Accepted Answer

Use the full destination URL including the protocol — for example https://example.com/landing-page rather than just example.com. QRThis prepends https:// automatically if you forget. For shorter URLs that encode into a smaller, easier-to-scan QR image, use a short link service or a dynamic QR code (qrth.is/r/abc is much shorter than a 200-character tracking URL).

Question 3

Can QR codes be different colors?

Accepted Answer

Yes. QR codes need high contrast between the foreground (dots) and background to scan reliably — black on white is the standard, but dark blue on light yellow, dark green on cream, and many other combinations work. QRThis lets you pick custom foreground and background hex colors. Avoid light-on-dark (some older scanners struggle) and avoid low-contrast pairs.

Question 4

What size should a QR code be?

Accepted Answer

For most print uses (flyers, cards, posters), generate at 1024×1024 pixels and let the print software scale it down. For digital use (websites, emails), 256×256 is usually enough. SVG is best when you don't know the final size yet — it scales perfectly to any dimension.

How to make a QR code.

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