Audio Joiner
Combine several audio files into one track in the order you set, with an optional pause between them, and download the result as MP3 or WAV.
- Runs in your browser
- Free to use
About this tool
Audio Joiner concatenates WAV, MP3 and M4A files into one track entirely in your browser: pick the order with the arrows, add a pause between tracks if you like, and download the result as MP3 or lossless WAV. Perfect for stitching podcast segments, voice memos or sound effects without installing an editor.
Related: Audio Cutter, Audio Loop.
How to use it — quick steps
- 01
Add the files
Drop WAV, MP3 or M4A files on the dashed area or choose them; use the arrows to set the playing order.
- 02
Set the options
Optional silence between tracks in milliseconds, output as MP3 (choose the bitrate) or lossless WAV.
- 03
Press "Join audio files"
The files are decoded, resampled to a common rate and concatenated in your browser; play and download.
Key features of this tool
Any mix of formats
WAV, MP3 and M4A can be joined together; sample rates and channel counts are unified automatically.
Order and gaps
Numbered list with move arrows and an optional pause between tracks for podcasts and compilations.
Processed on your device
Decoding, processing and encoding run in your browser with the Web Audio API; audio files are never uploaded.
Frequently asked questions
Can I join files with different sample rates?
Yes; everything is resampled to the highest rate among the files and mixed to the largest channel count.
Is there a limit?
Up to 25 files of 50 MB each; the result must fit in browser memory, so very long compilations are better done in parts.
Are my files or data uploaded?
No. The tool is plain JavaScript that runs in your browser; the files or data you provide here are never uploaded to our servers.