Free Audio Joiner

An audio joiner combines separate recordings into one file that plays straight through. This one places your clips back to back in list order and exports a single MP3. It’s handy for intros, episode segments and voice notes.

1. Click Choose files and select all your clips at once. 2. Use the up arrows to set the order. 3. Click Process audio. 4. Play the joined MP3 and click Download.

No. All clips are read and joined by FFmpeg inside your browser, so they stay on your device. The engine is fetched once from a public CDN the first time you process audio, and your browser caches it.

Yes, it’s free and nothing is added to your audio: no voice tag, beep or intro. The limits are 20 files, 200 MB in total and 10 minutes of combined audio per join.

Yes. Mixed formats are fine as long as FFmpeg can decode each file. Every clip is resampled to 44.1 kHz stereo first, so different sample rates and mono or stereo clips join cleanly.

The result is always an MP3 at 192 kbps, 44.1 kHz stereo, named joined-audio.mp3. For a WAV version, open that MP3 in the audio converter and choose WAV.

Not with this tool; clips are joined with no gap and no fade. To add a pause, record or export a short silent clip and place it between the others in the list.

The combined audio must be 10 minutes or less, and the files must total 200 MB or less. Split the job into two joins or trim the clips first. A clip without a sound track also triggers an error.

Yes, in current mobile browsers such as Safari on iPhone and Chrome on Android. Joining uses your device’s memory, so a computer handles many or long clips more reliably.

Choosing files again replaces the current list instead of adding to it. Put all the clips in one folder and select them together, or drag them onto the Choose files button at the same time.