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Build a React js QRCode Scanner & Generator Web App in Browser Using jsQR Library in TypeScript
Mar 13, 2026
Buy the full source code of application here:
https://procodestore.com/index.php/product/build-a-react-js-qrcode-scanner-generator-web-app-in-browser-using-jsqr-library-in-typescript/
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0:00
Uh hello guys uh welcome to this uh
0:03
video. So in this video I'll show you a
0:04
react application that I developed which
0:07
actually generates QR code and also it
0:10
can also scan QR code at the same time.
0:12
So it's a single page application. We
0:14
are running it on local host. So as you
0:17
can see right here this is actually the
0:19
interface of the application. So right
0:21
here we have first of all a search field
0:24
where you can actually write your text
0:28
to convert to QR code in real time. So
0:31
as I'm writing the URL as you can see
0:33
the QR code is constructed in real time
0:35
and then you can download this QR code
0:37
as a QR as an image file. If I click the
0:40
download button,
0:43
so now you will see it is saved here as
0:46
a PNG file [snorts]
0:49
and at the same time you can even scan
0:51
the QR code as well. So you can copy to
0:54
clipboard as well and then you can
0:57
actually scan it through either an image
1:00
file or you can start your camera. So if
1:02
I select an image file here, the result
1:05
will be shown here. you will see the
1:07
scanned result and also you can start
1:10
the camera as well and then you can scan
1:13
the QR code right here.
1:16
So it's a single page application that I
1:18
developed in ReactJS. So this is full
1:20
directory structure as you can see. Uh
1:22
if you are interested in this project
1:25
I've given the link in the description.
1:26
You can directly purchase the full
1:28
source code and for building this
1:30
application we are using as you can see
1:32
the latest version of React.
1:36
We are also using Tailwind for the
1:38
interface and we are using JSQR which is
1:41
a third party QR code processing library
1:44
in JavaScript and
1:47
for actually scanning and generating QR
1:50
codes. So it's a single page
1:52
application. No back end is there. It's
1:54
all pro processing is directly happening
1:56
in the browser. So once you load the
1:58
application, you have the capability to
2:00
actually convert the text into QR code
2:04
or you also have the capability to scan
2:07
the QR codes through image or camera as
2:10
well. So you can even start camera as
2:12
well. So both the buttons are given
2:14
right here in this application.
2:18
So it's very easy to deploy this
2:20
application. You can run this locally as
2:23
similarly as I'm running right here by
2:25
simply npm rundev. So this will start
2:28
the local development server. Or if you
2:30
want to build out this uh react
2:33
application, you can also build out.
2:34
It's a complete application. Each and
2:37
every component is divided into its
2:39
typescript file here. So once you get
2:41
the source code, you will be very easy
2:43
for you to modify or add additional
2:45
features on top of this project as well.
2:48
It's a fully featured QR code generator
2:50
and scanner project in ReactJS. [snorts]
2:54
So the interface looks something like
2:56
this.
2:59
So in this video I just shown you this
3:02
demo here. So if you are needing on this
3:04
source code if you want this I've given
3:07
the link in the description. You can
3:08
check out the source code link. So it's
3:11
a fully fresh project. This is the main
3:14
component app.tsx TSX and we are using
3:17
this QR code component right here to
3:19
actually return this complete code here
3:22
which is 220 lines of code here. So
3:27
if you are interested in this the link
3:29
is given in the description.