Audio Joiner
Put recordings, voice notes, or music clips in order, trim individual clips, add a crossfade, and merge them into one audio file.
Loading the interactive controls. Processing happens on your device.
How to use Audio Joiner
- Choose at least two audio files or load the demo clips.
- Preview, arrange and trim the clips, then choose how much the ends overlap.
- Preview the merged track and download WAV, MP3, FLAC or OGG.
Common questions
Can I combine MP3, WAV, and M4A files?
Yes, if your browser can decode the inputs. Choose up to 50 clips. Standard exports support four minutes of selected audio. Supported desktop browsers can join up to 20 minutes as WAV: longer inputs must be 48 kHz, 16-bit PCM WAV with a standard mono or stereo layout, with up to 180 MiB per input and 300 MiB in total. Other formats remain limited to four minutes and 40 MiB per input.
When should I use a crossfade?
A short crossfade can smooth a hard cut. Set it to zero when every clip should start after the previous one ends.
What happens when I mix mono and stereo clips?
If any clip is stereo, the result is stereo. The mono clips play equally through the left and right channels.