My QR code doesn't work — the five most common causes
Troubleshooting walk-through for when a QR code from QR Code with Logo doesn't behave the way you expect.
Generating a QR code sounds like it should require an app — and historically it did. QR Code with Logo runs the same thing in your browser tab, with one tap and no signup.
Use the tool: QR Code with Logo — Browser-only. Nothing is sent to a server.
Why your QR code doesn't work — five most common causes
- Source data too long — exceeds the format's encoding capacity. QR Code with Logo warns at the threshold; pay attention to the warning.
- Wrong format selected — the QR code was generated for the wrong target. Re-run with the right format.
- Size too small — the QR code was downloaded at a size where the encoding can't be reliably read. Bigger is safer.
- Color contrast — if you customized colors, low contrast between foreground and background breaks scannability.
- Damaged in transit — copying the QR code as a low-resolution image (e.g., a screenshot) destroys detail.
Open the tool
Free, no account required, no watermark.
Frequently asked questions
Is QR Code with Logo truly free?
Yes. No signup, no daily cap, no watermark. The site is supported by ads, not subscriptions.
Can I customize the QR code's appearance?
Yes — size, color, error-correction, margin, and optional logo overlay are all supported.
Will my QR code work after QR Code with Logo shuts down?
Yes — once generated, a QR code is a standalone artefact. It doesn't depend on QR Code with Logo continuing to exist.
What format does QR Code with Logo output?
QR Code with Logo offers PNG (for print), SVG (for web), and plain text (for embedding) where applicable.
Related guides
- How to generate 50 QR codes at once
- Five QR code examples generated with QR Code with Logo
- Frequently asked questions about QR Code with Logo
- Security best practices when using QR Code with Logo
- My color doesn't work — the five most common causes
- My identifier doesn't work — the five most common causes
Ready to try it?
Launch the tool: QR Code with Logo. Free, no account required, no watermark.
Last reviewed May 2026. File-size limits, portal requirements, and software defaults change over time — always verify with the destination platform before uploading time-sensitive documents. References to third-party services and products are for descriptive purposes only and do not imply any partnership or endorsement.