FileAppsFileApps
Audio Tools5 formats supported

Free online audio merger

Use this free online audio merger to join audio files in your browser. Merge MP3, WAV, M4A, FLAC, and OGG tracks without uploading them to a remote server.

  • Sequential concatenation of audio files
  • Layering/mixing multiple tracks together
  • Reorder files with simple controls

Supported formats

MP3WAVAACOGGFLAC

Arrange files and merge

Add your files, set their order, and combine them into one output.

1
2
3
4
5

Drag & drop Audio Mergers

or click to browse

Supported: MP3, WAV, AAC, OGG, FLAC

How It Works

A simple three-step flow from upload to download.

  1. 1

    Upload multiple audio files and arrange them in order.

  2. 2

    Optionally enable crossfade between files.

  3. 3

    Merge and download the combined audio file.

Features

Key capabilities surfaced as quick-scan cards.

  • Sequential concatenation of audio files

  • Layering/mixing multiple tracks together

  • Reorder files with simple controls

  • Crossfade between tracks

Related Tools

Nearby workflows people often use before or after this audio tool.

Audio Trimmer

MP3 · WAV · AAC

Cut and trim audio segments with precise start/end time controls.

Open tool

Audio Converter

MP3 · WAV · AAC

Convert audio files between MP3, WAV, AAC, OGG, FLAC, M4A, and WMA.

Open tool

Audio Compressor

MP3 · AAC · OGG

Reduce audio file size with adjustable bitrate and quality optimization.

Open tool

Audio Effects

MP3 · WAV · AAC

Apply filters, speed changes, reverse, and volume adjustments to audio.

Open tool

How to merge audio files online

  1. 1

    Upload your audio files

    Choose two or more audio files from your device or drag them into the merger. Common formats like MP3, WAV, M4A, FLAC, and OGG are supported.

  2. 2

    Reorder the tracks

    Arrange the files in the order you want them to play. This is useful when you want to join songs, combine voice notes, or turn multiple recordings into one file.

  3. 3

    Merge and download

    Start the merge and download the combined file when it is ready. The process runs in your browser, so you can merge audio files online without sending them to a remote service.

Understanding the settings

Matching formats and sample rates usually make audio merging faster and more predictable. If the files are very different, they may need to be re-encoded into a common format before they can be joined cleanly. For most everyday use, exporting the final result as MP3 is the simplest option because it stays broadly compatible across phones, laptops, and apps.

Compatibility, privacy, and limitations

Browser and device support

These tools are designed for modern browsers. Actual speed and maximum practical file size depend on device memory, processor speed, and how much media your browser can safely keep in memory during processing.

Format safety

If you are unsure which output to choose, start with broadly compatible formats such as MP3, WAV, AAC, and similar mainstream formats. They are usually the safest fallback for everyday sharing and playback.

Privacy explanation

This media job runs locally in your browser, which is useful for personal recordings, internal assets, and other files you would rather not send through a remote upload service for a routine edit.

Things to keep in mind

  • Very large files can take longer to inspect and process because browsers have less memory headroom than native desktop editors.
  • FFmpeg-based browser processing is flexible, but long or high-resolution media can still be slower than a native desktop workflow.
  • Batch and multi-file jobs depend on total file size as well as per-file size, so large runs may need to be split into smaller batches.

Frequently asked questions