How to use QR Code Scanner
- 1
Open the QR Code Scanner
Go to tools.slaytic.com and open the QR Code Scanner. No sign-up or account required.
- 2
Choose camera or upload
Point your camera at the code, or upload a photo or screenshot containing one.
- 3
Read the decoded content
The result is shown as text, so you can check a link before deciding whether to follow it.
How this works in your browser
Frames from the camera, or the pixels of an uploaded image, are drawn onto a canvas and passed to a QR decoding library running in your browser. The decoder locates the three large position squares that mark the code’s corners, uses them to establish orientation and perspective, samples the module grid, and then applies Reed-Solomon error correction to reconstruct the data even where part of the pattern is obscured or damaged. Nothing is transmitted at any point, which has two consequences worth stating: it works on confidential codes such as tickets and access passes without exposing them, and it shows you the decoded destination as plain text rather than immediately acting on it.
QR Code Scanner vs. traditional online converters
| Feature | QR Code Scanner (in-browser) | Traditional online converters |
|---|---|---|
| File upload required | No - never leaves your device | Yes - file is sent to a server |
| Processing queue | None - starts instantly | Often, especially at peak times |
| Watermark on output | Never | Common on free plans |
| Usage limits | None - free, unlimited use | Often capped per day or file size |
| Works offline once loaded | Yes, for most tools | No - requires a live connection |
| Account required | No | Often, for anything beyond a trial |
Who uses QR Code Scanner
Checking a link before opening it
See where a code actually points before deciding to visit it.
Scanning from a screenshot
Decode a code received in a message or document that you cannot point a camera at.
Reading codes on a desktop
Scan using a laptop webcam when your phone is not the right tool for the job.
Verifying codes you created
Confirm a generated code encodes exactly what you intended before printing it.
Frequently asked questions
Do I need to grant camera access?
Only if you use the live camera option. Uploading an image works without any camera permission.
Is my camera feed uploaded anywhere?
No. The video frames are analysed locally in your browser to decode the code; nothing is sent to a server.
What if the QR code is blurry or at an angle?
Try moving closer, improving lighting, or holding the camera more directly facing the code, since decoding accuracy depends on image clarity.
Why scan here instead of with my phone camera?
Chiefly to see the destination before going there. A phone camera typically offers to open a link immediately, whereas this shows you the decoded content as text first. That matters, because a QR code is unreadable to humans and there is no way to tell a menu link from a malicious one by looking at the pattern.
Are QR codes actually a security risk?
They can be, and the risk is real enough to have a name. Stickers placed over legitimate codes on parking meters, restaurant tables and posters redirect people to convincing fake payment pages. Reading the destination before acting on it is the single most effective defence, which is exactly what a scanner that shows you the text provides.
Can I scan a code from a screenshot?
Yes. Uploading an image works without granting any camera permission, which is useful for codes received in a message, an email or a document you cannot point a camera at.
Is my camera feed recorded?
No. Frames are analysed in your browser and discarded as they go; nothing is stored, uploaded or retained after you close the tab.