Is my camera feed uploaded anywhere?

No. The video stream stays on your device: frames are decoded locally in your browser by JavaScript. Nothing is recorded, stored or uploaded — the scanner works entirely client-side.

Why does the scanner ask for camera permission?

Reading a QR code with your camera requires access to the video stream. The browser asks for your approval first and shows it in the address bar; you can revoke it at any time and nothing is ever sent over the network.

The QR code contains a link — is it safe to open?

Not always. Scanning shows you the raw destination before you click, which is exactly why reading QR codes on desktop first is safer than tapping blind links. Check the URL carefully — look-alike domains are a common phishing trick.

Can I decode a QR code from an image instead of the camera?

Yes — drop a screenshot or photo of the code into the image decoder below and it is read locally with the same privacy rule. PNG, JPEG, WebP and GIF all work, as long as the code is sharp and fully visible.

QR Code Scanner

Taw koj lub koob yees duab ntawm QR code - lossis tso ib daim duab ntawm ib qho - thiab nyeem nws cov ntsiab lus tam sim ntawd: txuas, Wi-Fi daim ntawv pov thawj, kev tiv tauj, cov ntsiab lus them nyiaj. Txhua yam yog txiav txim siab hauv koj tus browser: tsis muaj dab tsi tawm hauv koj lub cuab yeej.

Tso ib daim duab ntawm no los yog nyem xaiv cov ntaub ntawv

PNG, JPEG, WebP, GIF - decoded hauv zos nrog jsQR, tsis muaj dab tsi tawm hauv koj lub cuab yeej

Kev npaj…

Luam theej duab QR cov lej yam tsis tau nruab ib lub app

Feem ntau cov xov tooj tam sim no txiav txim siab QR cov lej los ntawm lub koob yees duab built-in, tab sis ntawm lub laptop lossis desktop koj xav tau lub cuab yeej - thiab feem ntau cov tshuab luam ntawv online upload koj lub koob yees duab thav duab lossis duab rau lawv cov servers. Qhov no tsis yog: tus decoder yog ib lub tsev qiv ntawv JavaScript me me (jsQR) loaded rau hauv koj tus browser, thiab txhua video ncej yog soj ntsuam ntawm koj ntaus ntawv.

Yam QR cov lej feem ntau muaj

URLs - lub scanner qhia tag nrho cov hom phiaj ua ntej koj qhib nws, yog li koj tuaj yeem pom qhov zoo sib xws.
Wi-Fi daim ntawv pov thawj - qhia hauv tus qauv WIFI:S:…;P:…; hom ntawv, npaj los ntaus rau hauv txhua yam khoom siv.
Tiv tauj daim npav (vCard) - npe, xov tooj thiab emails raws li cov ntawv nyeem.
Kev them nyiaj, app txuas, daim pib tshwm sim - txhua qhov them nyiaj QR encoder tuaj yeem ntim rau hauv.

Nyob nyab xeeb: QR code tsuas yog txuas ib tus neeg luam tawm. Kho URLs decoded zoo li ib qho tsis paub txuas - nyeem lawv kom zoo ua ntej qhib, tshwj xeeb tshaj yog thaum lawv thov kev nkag lossis them nyiaj.

Ob lub cuab yeej ntawm nplooj ntawv no - lub koob yees duab thiab duab decoder - qhia tib txoj cai ntiag tug: cov bytes raug tshuaj xyuas los ntawm JavaScript hauv koj lub browser thiab tsis txhob kis. Xav tau nplooj ntawv tshwj xeeb? Cov QR code nyeem ntawv muaj cov duab decoding ntawm nws tus kheej, thiab cov QR code generator tsim cov lis dej num tib txoj kev ntiag tug.

FAQ

QR scanner cov lus nug

Puas yog kuv lub koob yees duab pub upload nyob qhov twg?

Tsis yog. Cov kwj video nyob twj ywm ntawm koj lub cuab yeej: thav duab tau txiav txim siab hauv zos hauv koj tus browser los ntawm JavaScript. Tsis muaj dab tsi raug kaw, khaws cia lossis xa tawm - lub scanner ua haujlwm tag nrho cov neeg siv khoom.

Vim li cas lub scanner thov kev tso cai lub koob yees duab?

Nyeem QR code nrog koj lub koob yees duab yuav tsum tau nkag mus rau cov kwj video. Tus browser nug txog koj qhov kev pom zoo ua ntej thiab qhia nws hauv qhov chaw nyob bar; koj tuaj yeem thim nws txhua lub sijhawm thiab tsis muaj dab tsi raug xa mus rau hauv lub network.

QR code muaj qhov txuas - nws puas muaj kev nyab xeeb qhib?

Tsis tas li. Kev luam theej duab qhia koj qhov chaw nyoos ua ntej koj nyem, uas yog vim li cas nyeem QR cov lej ntawm lub desktop ua ntej muaj kev nyab xeeb dua li tapping qhov tsis pom kev txuas. Txheeb xyuas qhov URL kom zoo - zoo ib yam li cov npe yog ib qho kev dag ntxias dag.

Kuv puas tuaj yeem txiav txim siab QR code los ntawm cov duab tsis yog lub koob yees duab?

Yog - poob ib lub screenshot lossis duab ntawm tus lej rau hauv daim duab decoder saum toj no thiab nws tau nyeem hauv zos nrog tib txoj cai ntiag tug. PNG, JPEG, WebP thiab GIF txhua yam ua haujlwm, tsuav yog cov cai ntse thiab pom tag nrho.