Free Online Audio Merger
Combine multiple audio files into one. Join up to 10 tracks in order and download as a single MP3 — free, private, no upload.
- Free
- No sign-up
- Stays on your device
Why use this tool
Merge Up to 10 Files
Combine multiple audio tracks into one seamless file.
Preserve Order
Drag to reorder files before merging — get the sequence exactly right.
100% Private
FFmpeg.wasm runs in your browser — no server uploads.
Fast Concat
Uses FFmpeg stream copy — merging is near-instant for same-format files.
MP3 Output
Download the merged audio as a single MP3 file.
Any Browser
Works on Windows, Mac, Linux, iOS, and Android.
Frequently asked questions
Yes — 100% free, no account required, no file limits.
Up to 10 audio files at once. For more, merge in batches.
No. FFmpeg.wasm processes everything in your browser. Your files never leave your device.
Merged files are output as MP3. If you need a different format, use our Audio Converter after merging.
Yes — you can mix MP3, WAV, OGG, and other formats. FFmpeg handles the re-encoding automatically.
Joining podcast episodes, combining interview parts, assembling audio chapters, merging sound effects, and creating playlists.
Need a voice, not just an edit?
Turn a script into speech, clone a voice or produce a podcast. Start free with 10,000 credits.