100% Free · No Signup · Browser-based

Merge Audio Files
Into One Track

Combine multiple MP3, WAV, OGG or AAC files into a single audio file. Reorder by drag-and-drop, add crossfades, and download instantly.

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Drag & Drop audio files here

Select multiple files at once · MP3, WAV, OGG, AAC, FLAC, M4A

Choose Audio Files

Audio Files — Drag to Reorder

0 files
Decoding files…

✅ Audio merged successfully!

Powerful Audio Merging Features

Professional audio joining, all in your browser.

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Drag to Reorder

Drag and drop files in the list to change the playback order before merging.

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Crossfade Blending

Add a smooth crossfade transition between clips to avoid jarring joins.

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Gap Control

Insert silence between clips — perfect for podcast chapters or album tracks.

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Dual Normalization

Normalize each clip individually and/or the final output for consistent loudness.

Simple Process

How to Merge Audio Files

1

Add Files

Drop multiple audio files at once or click to browse. Supports 10+ files.

2

Reorder

Drag and drop files in the list to set the exact playback sequence.

3

Set Options

Choose gap duration, crossfade length and normalization settings.

4

Download

Preview the merged audio and download your combined WAV file.

Frequently Asked Questions

How many files can I merge?
There is no hard limit. However, merging many long files requires enough RAM to hold all decoded audio buffers simultaneously. For very long projects, we recommend merging in batches.
What is crossfade?
Crossfade overlaps the end of one clip with the start of the next, fading one out while fading the other in. This creates a smooth, seamless transition instead of a hard cut between tracks.
Can I mix different formats?
Yes. The Web Audio API decodes all formats to raw PCM internally, so you can mix MP3, WAV, OGG and AAC files freely. They all get normalized to the same sample rate in the output.
What sample rate does the output use?
The output uses the sample rate of the first file in the list. All other files are resampled to match. For best results, use files with the same sample rate (e.g. all 44.1 kHz).

Merge Audio Files — Complete Guide

This free online merge audio files tool is designed to work entirely in your browser — no uploads, no waiting, no software installation needed. It's fast, private, and completely free to use without any account or subscription.

💡 Use WAV for lossless

Merge WAV files to get a lossless output — ideal for professional audio workflows.

💡 Add silence between tracks

Add a short silent gap (0.5-1 second) between audio segments for natural pauses.

💡 Consistent format

Use the same format for all input files to avoid quality inconsistencies.

💡 Podcast production

Merge intro music, interview audio, and outro to assemble a complete podcast episode.

Merging audio files is essential for podcast producers, musicians, educators, and anyone assembling multi-segment audio content.

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