Audio · Track 04 of 04
Join audio files into one
Put recordings together into one, in the order you choose. It happens on your device: nothing is uploaded.
How to join audio
- Choose the recordings to join, or drop them anywhere on this page.
- Put them in order with the arrows, and choose what goes between them.
- Select Join, then download the result.
Your files stay on your device
This tool runs inside your browser: your recordings are processed on your device and never uploaded. Your browser enforces which servers the page may talk to, and none of them is sent your files. Here's how you can check. Once you've used it, it works offline too.
Questions
- Can I join different formats?
- Yes. An MP3, a WAV and a voice note from a phone can go together in one file; they’re all decoded first, then joined and saved in the format you choose.
- What is a crossfade?
- The end of one recording fades out while the start of the next fades in, over the same moment, so they flow into each other without a gap. It suits music. For speech, a short silence or nothing between them usually sounds more natural.
- Why are some recordings quieter than others?
- Joining doesn’t change their volume. To even them out first, use Change volume’s Normalise on all of them, then join the results.
- Mono and stereo together?
- Fine. If any recording is stereo, the result is stereo, and mono recordings play equally from both sides.
- Is there a limit?
- Only your device’s memory: every recording is held in it while they’re joined. A few hours in total is usually fine on a computer; phones manage less.
- Are my recordings uploaded?
- No. They are joined by your browser, on your device, and saved straight back to it.