When the QR Code Generator seems to misbehave, the cause is usually one of two things: something stopped the tool from running, or it ran but the result is not usable. This guide starts with the fastest checks, then walks through the common problems and exact fixes.
Quick Checks First
- Refresh the page - a stalled session is the most common cause of nothing happening.
- Confirm the input is not empty and actually contains what you meant to submit.
- Try the smallest possible input; if that works, the issue is size, not the tool.
- Turn off browser extensions that block scripts, then reload and test again.
- Update or switch browsers if the problem repeats across sessions.
Common Problems and How to Fix Them
The code will not scan from my screen.
Increase the size and the contrast - a small, pale code is the usual cause of a failed read.
My QR code looks too dense to read.
Shorten the encoded data - a compact URL produces fewer modules that scanners find easier to resolve.
Printed codes fail after tearing.
Choose a higher error correction level so the scanner rebuilds the code from the remaining modules.
The scan returns plain text, not a website.
Include the protocol - write https:// so scanners treat the value as a link instead of raw text.
I put a logo over the middle.
Overlays eat into the correction budget - keep the centre clear or raise the error correction level first.
The downloaded image blurs when printed.
Pick a larger output size before generating - a small raster image cannot be stretched into a sharp print.
When It Works but the Output Is Poor
If the tool runs fine but the result misses, the problem is almost always the brief, not the software:
- Printing the code too small for the reading distance
- Lowering error correction on a dense code
- Leaving out the https prefix on links
- Skipping a test scan before printing
How to Stop It Happening Next Time
- Keep a saved prompt template for every task you repeat.
- Change one setting per generation so causes stay obvious.
- Run a two-minute sanity test with known input after any update.
- Note every failure and its fix; a short troubleshooting log pays for itself.
Still Stuck?
Reproduce the problem with the smallest possible input and note the exact steps that triggered it. A one-line description of what you did, what you expected and what happened is enough to get a precise answer from support or a colleague.
Frequently Asked Questions
What can a QR code store?
Plain text, a URL, contact details or WiFi credentials - the scanner returns whatever you encoded.
Do I need a special app to scan it?
No - modern phone cameras read QR codes directly in the camera app.
Will it still scan if the code is damaged?
Often yes - higher error correction levels let the scanner reconstruct the code from the remaining modules.
Is my data uploaded anywhere?
No - the code is generated in your browser and nothing is stored.
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