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Video & Audio Muxer

Mux video and audio files via FFmpeg library in your browser!
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About

A handy tool to mux (merge) video and audio files. It accepts a wide range of video and audio formats and works based on the famous FFmpg library in JavaScript.

Description

This web application is designed to mix video with an audio stream. Simply drop a video-only file in the designated area within the app. Then drop an audio-only file in the related filed as well. Click on the command button to insert a Mux command in the input filed. If you are familiar with FFmpeg commands, you can edit the command or insert your own. When the command is ready, please click on the - Mux - button at the top right corner. Wait for the muxing process to finish and then download the result to your system. You can see all the process info in the console area, moreover, when the muxing process is done, a preview for the final video will also be shown. Please note that by default, the final result will have the same file extension as the input video-only file. You can change this in the command area, however, you need to be familiar with FFmpeg commands and codecs as the wrong file extension will result in the FFmpeg process error. By default, a simple command for the muxing process is set when you click on the command button. This command is for those who are not familiar with FFmpeg and does the muxing job fairly good. But, for advanced users, the command area can be edited to perform a more advanced muxing process. Please note that this app uses FFmpeg library in Javascript which is a compiled version of the original FFmpeg library with Emscripten project. Since this project runs inside your browser via the Javascript engine, it has a lower performance comparing to the original FFmpeg engine in native platforms. Therefore, use this app for lite to moderate tasks and expect sudden crashes or errors in the final video file (although it is rare).

Technical Notes

As mentioned above, this app works based on the FFmpeg library which is compiled with Emscripten project to javascript language. Therefore, it can be run in almost any modern browser. Please note that, when running the app for the first time, wait for the FFmpeg library to be loaded completely. It may take a which for the library to load as the file size is rather large. Once the app is ready, drag your files in the input areas and start the muxing job.

Video & Audio Muxer app is also available as a browser extension. As an extension, this app does not need an internet connection and can be used offline in your browser. Download links for three popular browsers are as follows: Chrome, Opera, Firefox.

If you found a bug in this page, or have a feature/function which you would like to see in this web app, please let us know by sending an email or through the discussion form below. Moreover, don't forget to check other web apps in webbrowsertools.com, we have many useful apps related to browser's privacy and security.

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