QR Code Generator
Convert URLs or text into downloadable, highly-customizable vector QR codes.
What is a QR Code Generator?
A QR code generator converts text, URLs, or data into a scannable QR (Quick Response) code image. QR codes are 2D barcodes that can be scanned by smartphone cameras to quickly open websites, share contact information, join Wi-Fi networks, or display text. Our free online QR code generator creates high-quality, customizable vector QR codes that you can download as SVG (scalable) or PNG. All generation happens locally in your browser.
How to Generate QR Codes Online
- 1Enter your content
Type or paste the URL, text, or data you want to encode into a QR code.
- 2Customize appearance
Adjust colors, size, error correction level, and other visual options.
- 3Preview the QR code
See a live preview of your QR code as you make changes.
- 4Download
Download the QR code as SVG (vector — scalable to any size) or PNG (raster).
Frequently Asked Questions
What can I encode in a QR code?
You can encode URLs, plain text, email addresses, phone numbers, Wi-Fi credentials, vCard contact information, and any other text data. URLs are the most common use case.
What is error correction level?
QR codes have built-in error correction that allows them to be read even if partially damaged. Levels range from L (7% recovery) to H (30% recovery). Higher levels make the QR code more robust but slightly more complex.
Should I download SVG or PNG?
Choose SVG if you need to resize the QR code (for print or large displays) — SVGs scale infinitely without losing quality. Choose PNG for web use or social media where a raster image is needed.
Are the QR codes free to use commercially?
Yes. QR codes generated by DevDeck are completely free for personal and commercial use. There are no watermarks, no attribution required, and no usage limits.
Why Use DevDeck?
DevDeck generates QR codes entirely in your browser using qrcode.react. Your URLs, Wi-Fi passwords, and other encoded data are never sent to any server.