How to join audio files
- Drop two or more audio files into the box or choose them. They don't have to be the same format.
- Drag them into the order you want, or use the arrow buttons. Under Between files, choose Silence for a pause or Crossfade to blend each file into the next, and set the seconds.
- Click Join files. Listen to the joined track in the player, then download it.
Common reasons to join audio
- Audiobooks and lectures: turn a folder of chapter files into one track for a player that handles single files better than playlists.
- Recordings split by the device: many voice recorders and cameras start a new file after a time or size limit. Join the parts with no gap to get the whole session back.
- Podcast episodes: put an intro jingle, the episode and an outro together in one step.
- Workout or party mixes: line up songs in order with a 2 second pause between them.
Tips for a clean result
Files appear in the order you add them, so picking them in the right order from your file browser saves dragging later. Use the remove button on any row to take a file out without starting again.
Trim long silences or false starts off the ends of each file first with trim MP3, or they add up in the joined track. MP3 encoders add a few milliseconds of silence at each end; when the file says how much (most do), it’s removed before joining, so two halves of one recording join without a gap.
The joined file is saved as joined.mp3 (or .wav or .m4a). Choose WAV if you plan to keep editing it, and MP3 for a file that plays almost anywhere. All of it happens in your browser, so your recordings stay on your device.