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Audio Joiner

Join two or more MP3, WAV, M4A, or OGG files into one continuous track, in the order you choose.

Audio files
Drop audio files here or click to browse
or paste from clipboard (Ctrl+V) · MP3, WAV, M4A, OGG
Files stay in your browser. Nothing is uploaded.
Output format

Joining decodes every file and re-encodes one continuous track, so mixed formats and sample rates always line up.

How to merge audio files online

  1. Add your audio files

    Drag two or more files onto the drop zone or click to browse. MP3, WAV, M4A, and OGG can be mixed freely in one job.

  2. Put them in order

    Use the up and down controls to arrange the files from first to last; the joined track plays top to bottom.

  3. Pick an output format

    Choose MP3 at 192 kbps for a small file that plays everywhere, or WAV for uncompressed audio.

  4. Join and download

    Click Join audio, wait for the progress bar to finish, then preview the result and download it as one file.

Why use this tool

Mixed formats in one job

MP3, WAV, M4A, and OGG files can be combined in a single join. There is no need to convert everything to one format first.

Exact order without dragging

Up and down controls move each file precisely, which works just as well on a touch screen as with a mouse. Remove any file from the list with one click.

MP3 or WAV output

MP3 at 192 kbps keeps the joined file small and plays everywhere. WAV is uncompressed, which suits editing and further processing.

Re-encoded so it always plays

Every input is decoded and re-encoded into one continuous stream, so files with different codecs or sample rates never produce clicks, gaps, or broken playback.

Nothing leaves your browser

The whole join runs on your device. Files are never uploaded, stored, or logged anywhere.

Free with no signup

No account, no watermark, and no cap on how many joins you run.

About this tool

This tool joins two or more audio files into a single continuous track, entirely in your browser. Add MP3, WAV, M4A, and OGG files in any combination, put them in order with the up and down controls, and download the result as MP3 at 192 kbps or as uncompressed WAV. Every input is decoded into one uniform stream before the final encode, which is why mixed formats, bitrates, and sample rates never cause glitches, silent gaps, or players that stop halfway through the track.

Typical jobs include stitching separate voice memo takes into one recording, combining the parts of a lecture or interview, and assembling several songs into a single mixtape-style file. If a clip needs tightening first, trim it before joining, and if a take is missing you can record it without leaving the browser. Sound that is stuck inside a video can be extracted first and then joined like any other file.

Nothing is uploaded at any point, so private recordings, meeting audio, and unreleased music stay on your device. The first run downloads the audio engine once per session; after that, joins run at the speed of your machine. Because the whole job is processed in memory, joining many hours of audio is more comfortable in a desktop browser than on a phone.

Frequently asked questions

How do I control the order of the merged file?
The list order is the playback order: the file at the top plays first and the file at the bottom plays last. Use the up and down controls next to each file to rearrange, and the remove control to drop a file from the join.
Can I merge files with different formats or sample rates?
Yes. Every input is decoded into one uniform stream before the output is encoded, so an MP3 recorded on a phone, a WAV exported from an editor, and an M4A voice memo can all go into the same join without any preparation.
Does joining reduce the audio quality?
Joining always re-encodes, because that is what makes mixed inputs reliable. With WAV output the encode is lossless, so nothing is lost beyond decoding the sources. With MP3 output the joined track is a fresh 192 kbps encode, which adds one more lossy generation; at that bitrate the difference is hard to hear for speech and casual listening. Pick WAV if you plan to edit the result further.
Are my audio files uploaded anywhere?
No. The files are read and joined entirely inside your browser, and the finished track is saved straight to your device. The first run downloads the audio engine once per session; your audio itself never leaves your machine.
Is there a limit on the number of files or their length?
There is no fixed limit. The practical ceiling is your device memory, because the whole job is processed locally. Joining a handful of songs or voice memos is quick; joining many hours of audio works but is more comfortable in a desktop browser than on a phone.

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