Merge audio files — free, online
Join 2 to 32 audio files into one MP3, in whatever order you choose. Mix MP3, WAV, M4A and more — everything runs 100 % in your browser, nothing is uploaded.
Drop audio files here
or drag & drop here — add as many as you like (2–32)
Add more files any time — they go to the end of the list.
Working…
How to merge audio files
- Add your filesDrop 2–32 audio files above — they never leave your browser.
- Arrange the orderUse the up/down arrows so they play in the right sequence.
- Merge and downloadPress the button and get one watermark-free MP3.
Popular uses
One file out of many:
Frequently asked questions
Can I control the order of the merged audio?
Yes — use the up/down arrows on each file to arrange them. The final MP3 plays them top to bottom in exactly that order.
Do all files need the same format?
No. You can mix MP3, WAV, M4A, OGG and more — everything is re-encoded into one clean 192 kbps MP3, so different codecs and sample rates join seamlessly.
How many files can I merge?
Between 2 and 32 files per merge. The total is also limited by your browser memory — keep combined files under about 500 MB.
Does my audio leave my device?
Never. Merging runs entirely on your device using a WebAssembly build of FFmpeg, loaded unmodified from a CDN. Your files are never uploaded to any server.
Is it really free? Any watermark?
Yes — 100% free with no signup and no watermark, and no limit on how many merges you do.
Will the merged file keep full quality?
The output is a 192 kbps MP3, which sounds great for voice and music. It is not lossless — keep your originals if you need archive masters.
Need another video tool?
Scripts that sell, captions without watermarks, silence removed and more — 15 free tools that run entirely in your browser.