Merge several audio files
Order the files and download them joined into one MP3. Different formats are evened out automatically; merging re-encodes (we say it clearly).
Your files never leave your device
How to merge audio files
- 1
Upload the files
Up to 10 files, even in different formats.
- 2
Order them
With the arrows; the first one plays first.
- 3
Download the MP3
One single file at 192 kbps, ready to share.
Why use this tool
Mixed formats
MP3 + WAV + M4A in the same merge: sample rate and channels are evened out automatically.
Honest notice
Merging requires re-encoding; we tell you instead of hiding it.
Private
Your audio never leaves your device: ffmpeg runs inside your browser.
Real engine
ffmpeg, the industry standard, compiled to WebAssembly and self-hosted.
Frequently asked questions
Why is the output MP3?
It is the one format everything plays. The merge is done at 192 kbps, more than enough for speech and music.
Is quality lost?
Merging different formats forces one re-encode. At 192 kbps the difference is inaudible in practice, but we prefer to tell you.
Is there a file limit?
Up to 10 per merge, so the browser memory does not suffer. Chain merges if you need more.