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Audio Joiner Online Free

Merge MP3, WAV, OGG and FLAC files into one track — free, private, instant

The best free audio joiner online. Combine MP3, WAV, OGG and FLAC files directly in your browser with no uploads and no registration.

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50MB
Max File Size
5 minutes
Max Duration
100%
Browser-Based
Free
No Registration

Privacy First: All processing runs locally in your browser. Your files never leave your device.

Step 1: Upload Your File

Drag and drop files here or click to add

Select multiple files or add them one by one

Supported: MP3, WAV, OGG, FLAC | Max file size: 50MB | Max duration: 5 minutes

Step 2: Choose Options

Processing happens locally for privacy.

What you get

No Uploads
Your files stay on your device for privacy.
Simple Ordering
Arrange clips in the exact order you want.
Clean Output
Download a single merged track instantly.

Why Use Our Audio Joiner?

Private

Browser based processing keeps your audio local.

Fast

Merge clips in seconds without uploads.

Free

No registration, no limits, no watermarks.

How to Use the Audio Joiner

  1. Add Your Files - Upload two or more audio files to merge.
  2. Set Order - Arrange the track order and choose optional gaps.
  3. Merge and Download - Click merge to export a single combined file.

Common Use Cases

  • Combine podcast segments
  • Merge voiceovers and music
  • Join song clips

Supported Audio Formats

MP3, WAV, OGG, FLAC.

Frequently Asked Questions

Is the audio joiner free?

Yes, this is a completely free audio joiner online. No signup, no subscription, and no watermarks on your output files.

Do my files upload to a server?

No. All merging happens locally in your browser using WebAssembly. Your audio files never leave your device, which keeps them completely private.

Which formats are supported?

You can merge MP3, WAV, OGG, and FLAC files. You can also mix formats — for example, join an MP3 and a WAV together and export as MP3.

Can I change the order of tracks?

Yes. Use the move up and move down buttons to arrange your audio files in any order before merging.

How do I merge MP3 files online for free?

Upload your MP3 files using the file picker above, arrange them in the order you want, choose MP3 as the output format, and click Merge Audio. Your joined MP3 will download automatically.

Can I join WAV files online?

Yes. This tool is a free WAV joiner as well as an MP3 joiner. Upload your WAV files, set the order, and export as WAV or convert to MP3 in one step.

Is there a FLAC joiner online?

Yes. Upload your FLAC files and this free audio joiner will merge them into a single FLAC, WAV, or MP3 file. FLAC quality is preserved when exporting to FLAC.

How many audio files can I merge at once?

You can merge as many files as you need. There is no hard limit on the number of tracks, though very long sessions may take a moment to process.

Can I add a crossfade or gap between songs?

Yes. Choose from direct join, crossfade (1s, 2s, or 3s), or a silence gap (0.5s, 1s, or 2s) between each track using the Transition option before merging.

What is the best free online audio merger?

This tool is one of the best free online audio merger tools in 2026 because it runs entirely in your browser, supports MP3, WAV, OGG and FLAC, offers crossfade transitions, and requires no account or download.

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