What are the four ways to scan?
Use your camera, pick or drop an image, paste an image from the clipboard, or share a screen, window or tab on desktop. Screen scanning appears only where the browser supports screen sharing.
Which codes can it read?
QR, Micro QR, rMQR, Aztec, Data Matrix and PDF417, plus 1D barcodes including EAN, UPC, Code 128, Code 39, Code 93, ITF, Codabar and DataBar.
When are my camera and screen used?
Only after you tap Camera or Screen and grant access. The picture stays on your device. The camera stops when you hide the tab, leave the tool, choose another input or tap Stop. Screen sharing stops when a code is found or you stop sharing. Nothing is uploaded or stored except your camera choice; images and results are held only in memory.
What does “Nothing unusual found” mean?
The local checks found no unusual details in the link text. There is no website lookup or reputation check, and the scanner cannot check where a link eventually leads. It never labels a link “safe”. Open it only if you trust where the code came from.
Why does it not join Wi-Fi for me?
A browser cannot join a Wi-Fi network. Copy the password and paste it in your device’s Wi-Fi settings, or choose the named network if it is open.
Why might an rMQR code not read?
rMQR codes that are slightly out of focus may not read: ZXing-C++’s rMQR reader fails on slight blur. Try a sharper image with the whole code and its margin visible.
Which image files can I use?
Common browser images such as JPEG, PNG, WebP, GIF, AVIF, SVG and BMP can be opened. HEIC, TIFF, PSD and camera RAW use a larger decoder that loads on first use if the browser cannot decode them. Support for a RAW file depends on its camera model. Files above 2 GB are refused; large decoded images can still exceed your device’s memory.
Does it read animated images?
Animated GIF and WebP are read from the first frame only.
What if no code is found?
The scanner tries different sizes, parts of the image and contrast settings, checking an eight-second deadline between attempts. You can cancel, choose a clearer image or drag a box around a code and read that area.
