My QR code doesn't work — the five most common causes
Troubleshooting walk-through for when a QR code from QR Code Generator doesn't behave the way you expect.
Generating a QR code sounds like it should require an app — and historically it did. QR Code Generator runs the same thing in your browser tab, with one tap and no signup.
Use the tool: QR Code Generator — Everything happens locally in your browser — your file never leaves your device.
Why your QR code doesn't work — five most common causes
- Source data too long — exceeds the format's encoding capacity. QR Code Generator 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.
Use the tool
No upload, no signup, no daily limit.
Frequently asked questions
Does QR Code Generator store my generated QR code?
No. QR Code Generator generates everything in your browser; nothing is uploaded, saved, or sent.
Can I generate QR codes in bulk?
Yes — drop a list of inputs and QR Code Generator runs them all in sequence, packaged into a ZIP for download.
Is QR Code Generator truly free?
Yes. No signup, no daily cap, no watermark. The site is supported by ads, not subscriptions.
What format does QR Code Generator output?
QR Code Generator offers PNG (for print), SVG (for web), and plain text (for embedding) where applicable.
Related guides
- Using QR Code Generator for websites and apps
- QR Code Generator: a beginner's step-by-step
- Best practices when generating a QR code in 2026
- Five QR code examples generated with QR Code Generator
- My meta tag doesn't work — the five most common causes
- My barcode doesn't work — the five most common causes
Ready to try it?
Use the tool: QR Code Generator. Everything happens locally in your browser — your file never leaves your device.
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.