Merge audio files
Join several recordings into one, in the order you choose.
Joining audio sounds simple and has one trap in it: a 44.1 kHz stereo MP3 and a 48 kHz mono voice note cannot simply be laid end to end, and putting them together without converting is how you get a file that plays at the wrong speed. Every input here is brought to a common format first, so files from different sources join correctly. Drag the list to set the order.
How to use it
- Add two or more audio files, up to ten.
- Drag them into the order you want.
- Press Join them and download the result.
Why use this tool
Completely private
Everything runs inside your browser. Your files and text are never sent to a server.
Free, with no limits
No sign-up, no watermarks and no cap on how many times you can use it.
Instant results
There is no upload or queue to wait for, so results appear as fast as your device can work.
Works on any device
Runs in any modern browser on phone, tablet or desktop. Nothing to install.
Frequently asked questions
- Can I mix different formats?
- Yes. MP3, WAV, OGG, M4A and voice notes can all go into the same batch. Each is converted to a common format before joining, which is what stops the speed problems.
- Will there be a gap between the files?
- No. They are joined end to end exactly as they are. If you want a pause between them you would need to add silence to the files first.
- What format do I get back?
- An MP3, because it plays everywhere. Convert it afterwards if you need something else.
- Is this the same as mixing them together?
- No. This plays them one after another. Mixing means playing them at the same time over each other, which is a different job and is not what this does.