Combine voice notes, podcast segments or songs into a single file.
How to join audio files
Choose two or more audio files. You can add more later.
Reorder with the arrows and set a gap in seconds (0 for none).
Choose WAV or MP3, select Join, preview, and download.
Files with different sample rates are converted to the rate of the first clip, and mono clips are matched to stereo when needed. Up to 30 clips can be joined.
MP3 files are encoded with LAME (lamejs 1.2.1, licensed under the LGPL-3.0), which is loaded unmodified as a separate file. Licence and source code.
Frequently asked questions
WAV or MP3?
WAV is lossless, so it is best if you will edit the result further. MP3 is far smaller and plays everywhere; 192 kbps is a good choice for music and 128 kbps for speech.
Is there a length limit?
Only your device's memory. Around an hour of stereo audio works on most computers.