Video and audio tools

Audio merger

Join several audio files into one longer audio file and download it as WAV.

Files you choose stay on your device — they are not uploaded to Tools99.

Workspace: 1. Add files2. Ready3. Working4. Done — download

How this workspace works
  1. Choose several audio files, in the order you want them.
  2. Join them in your browser.
  3. Download the single longer file as WAV.

Files are joined end to end in the order chosen. Different sample rates are resampled to the first file's rate.

Your file never left this device, so there is no server copy to delete. Download again, start over, or continue with a related tool below.

How to use Audio merger

  1. Choose several audio files, in the order you want them.
  2. Join them in your browser.
  3. Download the single longer file as WAV.

A good use for this

Joining voice notes, chapters, or tracks into one continuous recording.

Limits

Files are joined in the order given with no crossfade or volume matching, and the WAV output is uncompressed, so it will be larger than the MP3 originals.