MP3 Joiner.
Combine multiple MP3, WAV and other audio files into one, in any order. Fast, easy and 100% private.
Join Files
Add one or more files to append them to the end, in order.
Private & Secure
Your files are merged locally — nothing is ever uploaded to a server.
Instant Merging
Reorder and combine tracks in seconds, right in your browser.
Any Number of Files
Join as many MP3, WAV or M4A files as you need, in any order.
Free to Use
Merge unlimited files for free, with no watermark on the result.
Tip: Drag files to reorder them before merging — the queue plays back in that exact order.
How to Use & FAQ
How to Join MP3 Files Online
- Click "Click to browse or drag & drop" and add two or more audio files.
- Drag the files in the queue to put them in the order you want them joined.
- Preview the combined result with the play button before exporting.
- Click Export and download your merged file as MP3 or WAV — nothing is ever uploaded.
Frequently Asked Questions
How many files can I join at once?
There's no fixed limit — join as many MP3, WAV or M4A files as you need, in any order.
Can I join files of different formats together?
Yes. You can mix MP3, WAV, M4A and other supported formats in the same queue — they'll all be combined into a single output file.
Is there a gap or silence between joined tracks?
No — tracks are joined back-to-back exactly as they play in your queue, with no added silence unless the original files already contain some.
Are my files uploaded to a server to be merged?
No. Merging happens entirely in your browser — your files are never sent anywhere.
Can I reorder files after adding them?
Yes — drag any file in the queue to a new position at any time before exporting.