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Build a Client-Side Video Editor Processing = Zero Server Costs | Next.js + FFmpeg WASM in Browser
Mar 3, 2026
Buy the full source code of application here:
https://procodestore.com/index.php/product/build-a-client-side-video-editor-processing-zero-server-costs-next-js-ffmpeg-wasm-in-browser/
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0:00
I built out a clientside video editor
0:03
directly in browser using NexJS. So this
0:06
is actually the project. I'm showing you
0:08
the live demo. We have deployed this
0:10
application locally. So
0:14
once you get to this, you can actually
0:16
create a project and then it will have a
0:18
timeline based editor. You come to the
0:21
project you have all the options. You
0:23
can add text, images. Here you can add
0:25
your video file whichever video file you
0:27
want to edit. Simply add this video to
0:30
the timeline section. Here you can play
0:32
the video. So this is a fully fledged
0:34
video editor project.
0:37
It's a single page application. All the
0:39
processing is directly happening on the
0:41
uh front end. No back end is there. So
0:44
zero server cost will be there for you.
0:46
So we are using ffmpg web assembly
0:48
library. We are also using next the
0:51
latest version. We are also using react
0:54
as well. So this is a full directory
0:56
structure of the actual project. All the
0:58
files are customizable. You will see
1:00
I've written this project from scratch
1:03
and uh once you get the source code the
1:05
link is given you can directly purchase
1:07
it. So once you purchase it you will get
1:09
the source code from Google drive
1:11
automatically.
1:12
So we are running this project locally.
1:14
It's also very easy for you to deploy
1:16
this. So now let me show you the feature
1:19
of this. So at any moment of time you
1:22
want to let's suppose I only want to get
1:24
the first 6 seconds. I want to cut this
1:28
video. So here you can actually split.
1:30
Click the split button. Just select the
1:33
video first of all in the timeline. Just
1:35
click split. And this will divide the
1:38
video into two sections. And now this
1:40
section I don't need. So I can simply
1:42
delete this. So now the video length
1:44
become 6 seconds. And here you can
1:47
adjust settings regarding the video as
1:49
well such as the volume, position of the
1:52
video, width and height everything,
1:54
opacity as well.
1:57
Then you alo also have the ability to
1:59
add text as well. So you just click add
2:02
text.
2:04
Just change the color here whichever
2:08
color you want to. And then just click
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add text.
2:12
And just you can actually adjust it.
2:16
And again if you want to edit the text
2:18
simply select this and right here you
2:21
can change.
2:24
You can just see how easy it is. And
2:26
here you can change the color as well
2:28
like this opacity, size, position,
2:32
everything.
2:35
So you can place it accordingly X
2:37
position, Y position. And similarly you
2:40
can even add images as well. Go to the
2:42
library section and add image. And again
2:46
you can split whichever section you
2:48
don't need of the image.
2:51
So this will save you a lot of time guys
2:53
for editing your videos. Similarly, now
2:56
if you want to add the image as your
2:58
overlay, you can adjust the size here.
3:02
So once you purchase it, it will be easy
3:05
for you to see the source code and also
3:07
use this application. So this will save
3:09
you a lot of time
3:12
for editing your videos. You can adjust
3:15
uh X position, Y position. Just place it
3:19
and then once you're done this is your
3:21
output video and now you have the option
3:24
to export this. So all the processing
3:27
will directly happen in the browser. So
3:29
here you can change the resolution
3:30
quality everything. Click on render and
3:33
now the ffmppg will process your video
3:36
frame by frame and with this nice little
3:39
progress bar. So once it reaches 100%
3:42
your output video will be shown to you.
3:45
And uh this doesn't have a backend. So
3:48
zero server cost will be there. So you
3:50
can easily deploy this once you purchase
3:52
it. The source code you can easily
3:55
deploy this customize it with zero
3:58
server cost. So all the processing is
4:01
directly happening in the browser.
4:05
If you still face any problem after
4:07
purchase, you can contact me at my email
4:09
address. All the information will be
4:11
given at the checkout page. So you can
4:15
safely purchase it. So this is you can
4:17
see it is using the latest version of
4:20
text.
4:23
And for building this we are using this
4:25
ffmpg web assembly library which makes
4:27
it easy for you to use ffmppg directly
4:29
in the browser.
4:36
So once it completes you will see the
4:38
output video.
4:56
So now you can see the output video is
4:58
constructed.
5:00
The text, image, everything is added
5:02
here. You will see that you click the
5:05
download button to save your video as an
5:07
MP4 file.
5:11
So you can just see here this is a
5:12
fullyfledged client side video editor
5:15
project in next year using fmpg. The
5:17
link is given. You can directly purchase