Merge audio files
Put several tracks one after another into a single file. Sample rate and channels are matched automatically.
🔒 Your file never leaves your device.
How it works
How it works
- 1
Add what goes in
Drop at least 2 files here (MP3, M4A, WAV, OGG and 4 more formats) — the order you add them is the order they are used in.
- 2
Start it
Set the order of the tracks, then start. Everything runs in this browser — no upload, no queue, no account.
- 3
Take the result
The MP3 · WAV is ready the moment the run finishes. Save it straight to your device.
When you need this
- A podcast intro, the episode and the outro exist as three separate files.
- Several voice messages should be kept as one recording.
Supported formats
Good to know
Frequently asked questions
What files can I use here?
Reads MP3, M4A, WAV, OGG and 4 more formats. At least 2 files at once.
What do I get back?
You get MP3 · WAV.
Does the file lose quality?
The sound is decoded and encoded again. At high bitrates that is inaudible; low ones thin out cymbals and sibilants first.
When does it not work?
Which audio codecs work depends on your browser. MP3, WAV and OGG are safe everywhere; AAC and Opus depend on the machine.
Which bitrate should I pick?
192 kbps sounds transparent to most ears, 128 kbps is the classic size for sharing, and 96 kbps still fits almost any inbox. Going higher than the original never adds quality — it only adds bytes.
Does the length change?
No. Converting and compressing keep the full length; only trimming shortens the file, and there you set the start and end yourself.
Private by design
Your files stay on your device
Your file never leaves your device.
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