Free Online Audio Merger
Combine and join multiple audio tracks together into a single continuous file. Re-order tracks easily and export as MP3, WAV, or M4A with zero server uploads.
How do I join multiple audio files into a single track online?
To merge multiple audio tracks into one continuous file, upload your files to BrowserConvert's Audio Merger below. Arrange the files in your preferred sequence using the reorder buttons, choose your target format (such as MP3 or WAV), and click Merge Files. Our client-side WebAssembly engine concatenates the audio streams sample-by-sample with 100% local privacy.
Audio Track Sequence
Tracks will be merged in the order listed below.
How to Combine Audio Files Online
1. Upload Files
Select two or more MP3, WAV, or M4A audio files from your device.
2. Re-Order Tracks
Use the up and down arrow controls to set your exact track order.
3. Merge & Download
Click “Merge Files” to process locally and download your single concatenated audio file.
Frequently Asked Questions About Audio Merging
Can I combine audio files of different formats?
Yes. You can upload an MP3, a WAV file, and an M4A file in the same batch. BrowserConvert decodes them into uniform internal PCM audio streams before concatenating and exporting into your selected target format.
Is there any gap or silence introduced between merged tracks?
No. The FFmpeg concat demuxer joins the raw audio samples sample-for-sample, creating a smooth, gapless transition between consecutive files.
Can I change the sequence order of the songs before joining them?
Yes. Use the up and down arrow buttons next to each track in the merger list to arrange your tracks in the exact playback order you desire.