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Online Audio Joiner is a free tool that enables you to join multiple audio files into a single one. It supports most audio formats and allows crossfading you tracks.
To run this application, you need to install Adobe Flash player first.
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You can adjust the position of the sliders using arrow keys on the keyboard. To move tracks hold Ctrl while pressing arrow keys.
The joining time depends on your connection speed.

Online Audio Joiner - merge mp3

Online Audio Joiner application is designed to merge several songs (mp3, m4a, wav, etc) into a single track. The program is absolutely free and operates online; therefore you don’t need to install it on your computer. Just open the browser and start merging.

Seamless Mp3 Merging

You can choose between the two modes of sound merger. If the “Crossfade” function is enabled, one track will gradually fade into another: the first track will gradually vanish, while the second will grow louder. This allows smooth transition when combining music tracks. More on how to join songs?

Support of Most Audio and Video Formats

The application supports almost all media formats out there. You can combine MP3, OGG, WMA, M4A, WAV and many more formats. It is worth mentioning that the program works best and quickest with the MP3 music. However, if you need to merge songs in other formats, they will be automatically converted and opened in the joiner. If you open a video file, the joiner will extract audio track from it.

User-Friendly Interface

The application was designed for the single purpose, therefore it is easy to use and will not overwhelm you with the abundance of functions which are almost never used anyway :)

Interval Adjustment

For each track you use when creating a composition, you can adjust a specific interval to be played. For this purpose you can move the blue sliders with either a mouse cursor or the arrow keys.

Merge Unlimited Number of Songs

There is no limit to the number of songs you can combine. The maximum size of a file is 750  MB.

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Please authorize Online Audio Joiner to work with your Google Drive