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How to Run FFMPEG WASM Directly in Browser Full WORKING Project in HTML & Javascript (FIX CORS Issue
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Jun 19, 2025
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View Video Transcript
0:04
uh hello guys uh welcome to this live
0:07
stream so in this live stream I will
0:09
show you that how to run the ffmppg web
0:13
assembly library directly in the browser
0:16
ffmpg library basically is the command
0:19
line specific library which works on the
0:21
command line in respective operating
0:24
system such as Windows Linux and
0:26
operating there is one such utility that
0:29
is created which is ffmppg web assembly
0:32
so this is actually if you go to their
0:35
GitHub page they tell you that ffmppg
0:38
for browser powered by web assembly web
0:41
assembly is a programming language which
0:44
is very much similar to machine language
0:48
so this is their official website where
0:50
they claim that they can run fmpp
0:52
library directly in the browser itself
0:55
so at the end of this video I will show
0:58
you this complete application which I
1:00
developed which runs directly in the
1:02
browser
1:05
so you can see this is coded inside HTML
1:08
CSS and JavaScript and I will show you a
1:11
full working example where you will be
1:14
able to run fmpp web assembly library
1:17
directly in the browser so I am just
1:19
opening localhost 3000 so this is a very
1:22
simple application which actually takes
1:24
your MP4 video and extracts all the
1:28
audio and converts it into MP3 so MP4 to
1:31
MP3 so I simply select my video file as
1:35
soon as I select you will see this
1:37
progress bar will be showing it is
1:39
showing that is processing the video
1:41
when it completes you will get this
1:43
notification that your conversion is
1:45
completed you can now download the MP3
1:47
file so if I click the download button
1:49
and then click the you now see it has
1:53
successfully
1:55
converted uh welcome friends my name is
1:57
Goautam so tools are available take some
1:59
time so as you can see it has converted
2:03
that MP4 video and extracted all the
2:05
audio and converted it to an MP3 file so
2:09
it is all coming because of this ffmpg
2:11
web assembly library ffmpg originally
2:15
itself it's a command line library it's
2:18
a complete crossplatform library for uh
2:23
doing some stuff with audio and video
2:25
files this is their official website so
2:28
you can even use command ffmpg on the
2:31
command line so if you have installed
2:34
ffmpg you will can access it like this
2:37
so we are using it directly in the
2:39
browser so I've basically compiled a
2:42
complete example so if you need the full
2:44
source code of this application I have
2:46
given the link in the description of the
2:48
video after you purchase the full source
2:50
code this is a full working example
2:53
uh it is very difficult to construct
2:56
this because you will get a shared array
2:58
buffer error whenever you try to access
3:01
ffmpg directly in the browser or you
3:04
will get cause issue if you are running
3:07
directly ffmpg right in the browser
3:09
itself you will see this error share
3:12
buffer is not defined so you need to add
3:14
headers inside your server but using
3:17
this approach that I built this
3:20
application you can directly open in
3:22
your application and you will not get
3:24
any sort of issue you select your video
3:26
file and if you see the command line you
3:29
will not see any sort of issues the
3:31
FMPPG library will execute properly and
3:35
it's a full working example so that's
3:38
why I given the link you can make the
3:40
payment and you can get the full working
3:42
example of this and you can directly run
3:44
this by inside your VS code you can
3:48
actually start a simple HTTP server
3:51
which will run directly on localhost
3:53
3000 if you are running on a different
3:55
port number let's suppose localhost 8
3:57
8,000 if your port number is then you
4:00
will get this issue because your port
4:03
number is different so that's why if you
4:05
select a video file you will get this
4:07
error
4:11
so just make sure whatever port number
4:13
you are doing you replace it here
4:18
because I'm running it on 30,000 so here
4:20
we have replaced it on 30,000 and in the
4:23
UMD folder here you can see we have
4:25
replaced all the libraries which are
4:28
necessary for fmpp web assembly library
4:30
we have included all these libraries and
4:33
now in the index html we are accessing
4:36
it it's a very simple example mp4 to mp3
4:40
so using this approach you can modify
4:42
the source code and just create any sort
4:44
of application it can be a audio
4:46
converter video converter audio to video
4:50
or video to images so once you get this
4:53
source code guys the link is given in
4:55
the description definitely purchase it
4:57
and you will get the full working
4:59
project of how to run fmpp web assembly
5:02
directly in the browser and uh this is
5:05
their official website here if you see
5:09
so you can run entirely in the browser
5:12
so if you are watching it for the very
5:14
first time guys this video please hit
5:16
that like button subscribe the channel
5:18
as well and if you are interested you
5:22
can purchase the full source code it's a
5:24
very simple application which converts
5:27
your MP4 video to MP3 you can see with
5:30
progress bar as well and it runs
5:33
entirely in the browser it's a static
5:35
application it doesn't require internet
5:37
if I turn on turn off my internet as
5:39
well then also it will work so no
5:42
serverside code is involved that's the
5:44
specialtity of FFMPG web assembly
5:46
library so you can see that
5:50
so thank you very much guys for watching
5:51
this video and also check out my website
5:54
which is free mediatools.com
5:57
so this contains thousands of tools
5:59
regarding audio video and image and I
6:02
will be seeing you guys in the next live
6:05
stream
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