Generate downloadable QR codes with URL, Wi-Fi, email, and vCard payload builders plus scan diagnostics and a safe scan report.
Input / Output
Input, output, and copy actions stay in this main surface. Examples and reference checks are separated below.
Local session
Input state is saved only in this browser so you can restore the last workspace without an account.
Open examples, checks, and related tools only after the primary input/output flow is done.
Create a Wi-Fi QR
Generate a compatible network password, build the Wi-Fi payload, copy a scan report, and check contrast before sharing.
Generate a password that fits the router policy.
Build the Wi-Fi payload, download the QR image, and copy the scan report for handoff.
Check foreground and background contrast before printing.
Before copying
Common failure cases
Related tools
Guides
Open examples, checks, and related tools only after the primary input/output flow is done.
https://www.bobob.appWIFI:T:WPA;S:Guest Network;P:example-password;;mailto:hello@example.com?subject=DemoQR examples
Build URL, Wi-Fi, email, or vCard payloads before generating the QR image.
Copy-ready output
https://www.bobob.appCharacters
21
Input bytes
21
Payload type
URL
Scan density
Low
Review payload type, destination, density, and error correction before downloading the PNG.
Destination host
www.bobob.app
Tracking parameters
0
Text lines
1
Error correction
M · Balanced recovery
Image size
320px / Quiet zone 2
QR scan report
Copy a safe scan-readiness report without including the raw QR payload.
Payload type
URL
Characters
21
Input bytes
21
Destination host
www.bobob.app
Tracking parameters
0
Scan density
Low
Error correction
M · Balanced recovery
Image size
320px / Quiet zone 2
Payload included
No, only payload metrics, type, and destination host are included.
Scan checklist
# QR scan report
- Checked at: Browser copy time
- Payload type: URL
- Characters: 21
- Input bytes: 21
- Destination host: www.bobob.app
- Tracking parameters: 0
- Scan density: Low
- Error correction: M · Balanced recovery
- Image size: 320px / Quiet zone 2
- Payload included: No, only payload metrics, type, and destination host are included.
## Review notes
- The QR image is generated locally in the browser; only the encoded content is visible in the PNG.
## Scan checklist
- Scan the final PNG on at least two phones before printing or posting.
- Confirm the destination opens the expected page or app action.
- For Wi-Fi QR codes, share only in places where the network password can be public.
- Keep the quiet zone clear after resizing, cropping, or placing the image in artwork.
- Use HTTPS for public web URLs unless the target is intentionally local.PNG data URL generated in the browser.
Copy-ready output
Output will appear here.