How to use QR code
- 1. Paste a payload. URL, text, or otpauth URI.
- 2. Generate. PNG data URL in this tab.
- 3. Or drop an image. jsQR reads the pixels.
- 4. Don't encode secrets on a projector. Obvious, still said.
About this tool
QR is a packet with a camera-friendly wrapper. Generating and decoding locally means a Wi-Fi password or TOTP URI does not go through a random online encoder.
Capacity
Short URLs work. Huge JSON may not fit at this error-correction level.
Decode
Needs contrast. Screenshots of screenshots fail more often.
Code examples
url
https://puredevkit.com