Audio Merger – Join MP3 Files
Join several songs or recordings into one MP3 or WAV: reorder them, add gaps or smooth crossfades and match their loudness.
About Audio Merger – Join MP3 Files
Mishra World Audio Merger joins two or more songs, voice notes or recordings into a single MP3 or WAV file. Add the files, put them in order, then choose a gap of silence between tracks or a smooth crossfade so one song flows into the next. It is a simple MP3 joiner for mashups, playlists, school function music, wedding entries and podcast intros.
Tracks from different sources are rarely equally loud, so the tool can measure each one in LUFS and match their loudness before merging. Fade in and fade out at the ends are optional. MP3, WAV, M4A, OGG and FLAC can be mixed together, and everything is processed in your browser, so nothing is uploaded.
How to use Audio Merger – Join MP3 Files
- Drop two or more audio files (or add the sample clips).
- Drag them into order with the arrow buttons.
- Set a gap or a crossfade and choose whether to match loudness.
- Click Merge and download the MP3 or WAV.
Frequently asked questions
How many files can I join?
As many as your device memory allows. Every file is decoded to raw audio in the browser, so 20–30 songs work on most computers; phones handle fewer.
What does "Match loudness" do?
It measures each track's loudness (LUFS) and adjusts its volume so every track sounds about equally loud — useful when joining songs from different sources. A limiter keeps peaks below −1 dBFS.
Can I mix files of different formats?
Yes. MP3, WAV, M4A, OGG and FLAC can be joined together; everything is converted to 44.1 kHz stereo before merging.
How do I join two MP3 files into one?
Drop both files, check their order in the list, choose a gap or crossfade if you want one, and click Merge and export. Download the combined MP3.
Can I merge songs for a dance or function medley?
Yes. Add the songs in the order of the performance, set a crossfade of 2–4 seconds and tick Match loudness so no song is suddenly louder.
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