Audio Merger

Combine multiple audio files with crossfade, volume control, and effects

Drop your audio files here or click to browse

You can select multiple files at once

Features

Drag & Drop Ordering

Easily reorder tracks by dragging them to your desired position

Individual Track Control

Adjust volume, add delays, and apply fade effects to each track

Crossfade & Effects

Create smooth transitions with crossfade and normalize audio levels

How to Merge Audio Files

1

Upload Your Audio Files

Drag and drop or click to select multiple audio files. Supports MP3, WAV, OGG, and more.

2

Arrange and Configure

Drag tracks to reorder them. Expand each track to adjust volume, delays, and fade effects.

3

Set Merge Options

Configure crossfade duration and enable audio normalization for consistent volume.

4

Merge and Download

Click merge to combine your tracks. Preview the result and download your merged audio file.

Frequently Asked Questions

What audio formats can I merge?
You can merge any common audio format including MP3, WAV, OGG, M4A, AAC, FLAC, and more. The tool will decode all formats and merge them into a high-quality output file.
How does crossfade work?
Crossfade creates a smooth transition between tracks by gradually fading out the end of one track while fading in the beginning of the next. You can adjust the crossfade duration from 0 to 5 seconds.
Is there a limit to how many files I can merge?
There's no hard limit on the number of files, but performance depends on your device's memory. For best results, we recommend merging up to 20-30 files at a time. All processing happens in your browser, so larger files or more tracks will require more memory.
Can I merge files with different sample rates?
Yes! The merger automatically handles files with different sample rates, bit depths, and channel counts. All audio is resampled to ensure compatibility and maintain the highest possible quality in the output.

About Audio Merger

Our free online audio merger allows you to combine multiple audio files into a single track with professional-quality results. Whether you're creating a podcast, mixing music tracks, or combining voice recordings, this tool provides all the features you need for seamless audio merging.

With individual track controls, you can adjust the volume of each file, add delays between tracks, and apply fade in/out effects. The crossfade feature creates smooth transitions between consecutive tracks, perfect for creating continuous mixes or compilations.

All audio processing happens directly in your browser using the Web Audio API, ensuring your files remain private and secure. No uploads, no waiting - just fast, high-quality audio merging at your fingertips.