Text, URLs, Wi-Fi credentials (auto-formats as WIFI:T:WPA;S:ssid;P:pass;), vCards, SMS, email, or custom payloads. Different encodings produce different scanner behaviors.

What error-correction level?

L (7% recovery), M (15%), Q (25%), H (30%). Higher means bigger QR code but survives more damage/obscuring. Use M for screen, H for printed material that might get scuffed.

Yes — center the QR with a small logo (max 15% of area). The H error-correction level ensures the QR still scans despite the logo obscuring some data modules.

Will it scan on any phone?

Standard Reed-Solomon QR — scans on iOS Camera (12+), Android Google Lens, every dedicated scanner app. Older phones may need a QR-scanner app.

QR Code Generator | DevTools Surf

DevTools Surf

About QR Code Generator

QR Code Generator preview - Generators tool

Generate QR codes from text or URLs. Part of the DevTools Surf developer suite. Browse more tools in the Generators collection.

Use Cases

Share a long URL to mobile devices without typing
Generate Wi-Fi QR codes for guests
Embed payment or deep-link URLs in printed material
Print QR codes on event badges for rapid check-in

Tips

Works with URLs, text, WiFi credentials, or vCards
Customize foreground and background colors
Adjust size up to 800px for print quality

Fun Facts

QR codes were invented in 1994 by Denso Wave for tracking car parts in manufacturing. They can store up to 7,089 numeric characters.
QR codes have built-in error correction — they can still be read even when up to 30% of the code is damaged or obscured.
The largest QR code ever created covered 36,100 square meters on a rooftop in China and was scannable from an airplane.

FAQ

What can I encode?: Text, URLs, Wi-Fi credentials (auto-formats as WIFI:T:WPA;S:ssid;P:pass;), vCards, SMS, email, or custom payloads. Different encodings produce different scanner behaviors.
What error-correction level?: L (7% recovery), M (15%), Q (25%), H (30%). Higher means bigger QR code but survives more damage/obscuring. Use M for screen, H for printed material that might get scuffed.
Can I add a logo?: Yes — center the QR with a small logo (max 15% of area). The H error-correction level ensures the QR still scans despite the logo obscuring some data modules.
Will it scan on any phone?: Standard Reed-Solomon QR — scans on iOS Camera (12+), Android Google Lens, every dedicated scanner app. Older phones may need a QR-scanner app.

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