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Audio Tools

Audio Merger

Merge audio tracks directly in your browser. Upload two or more files, arrange the order, then export one combined audio file. Your files stay on your device. Free to use with no account or card needed.

Drop audio tracks here

Add 2 or more tracks in order. MP3, WAV, M4A, OGG, and more. MP4 and video files are not supported

  • Free to use
  • No account required
  • Files stay in your browser
  • Reorder tracks before merging
  • Export one combined audio file

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Frequently asked questions

How do I merge audio files online?
Upload two or more audio tracks, arrange them from top to bottom, then click Merge audio tracks. When the merge finishes, download one combined audio file from your browser.
Is this audio merger free?
Yes. This audio merger is completely free with no account, card, or software install required.
Are my audio files uploaded to a server?
No. Merging runs locally in your browser using FFmpeg compiled to WebAssembly. Your audio files are not uploaded to Vidsembly or any third-party server.
What audio formats can I merge?
Common formats including MP3, WAV, M4A, OGG, AAC, FLAC, and audio WebM are accepted. For best results, use tracks with the same format, codec, sample rate, and channel layout.
Can I change the order before merging audio tracks?
Yes. Add your tracks, then use Move up and Move down to set the final playback order before exporting the merged audio.
Will merging reduce my audio quality?
The merger uses stream copy when the tracks are compatible, so it avoids intentional quality loss. If tracks use different codecs, sample rates, or channel layouts, export may fail and you should create matching source files first.
How many audio tracks can I combine?
You can add multiple tracks in one session. Browser memory and source file size affect performance, so shorter tracks and matching MP3 or WAV files work best.

About this tool

Merge audio without uploading files

This free audio merger runs in your browser, so your recordings do not need to leave your device just to combine tracks. It is useful for lesson narration, podcast drafts, client call excerpts, training modules, and internal review files.

Arrange tracks in the right order

Upload your tracks, preview them, then move each file up or down until the sequence is correct. The tool merges from top to bottom, which makes it simple to assemble an intro, main segment, and closing clip in one pass.

When to merge audio before editing

Use a browser audio merger when you need a quick combined file for review, teaching, handoff, or light publishing. Use a full editor when the project needs crossfades, noise reduction, music beds, EQ, or detailed mixing.

Best formats for browser audio merging

MP3 and WAV files are the most reliable choices in modern browsers. For dependable exports, start with tracks from the same recorder or export preset so the format, codec, sample rate, and channel layout match.

Private workflows for combined audio

Audio projects can include student voices, client details, private meetings, unreleased podcast segments, or creator drafts. Local browser processing helps avoid an extra upload step when all you need is one combined file.

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