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Upload multiple files, reorder them, and trim the start or end of each track.
Audio Tools/ 01
Audio Merger
Merge audio files online, reorder tracks, trim clips, adjust volume, and crossfade.
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How to Merge Audio Files Online
Combine songs, voice clips, and sound effects with the online audio merger.
Set Transitions
Choose crossfade duration and curve behavior to control how adjacent audio files blend.
Preview and Merge
Check the combined timeline, preview the sequence, and export one merged WAV file.
Why Use This Online Audio Merger
Build a clean sequence without a timeline-heavy desktop editing application.
Per-Track Trim Controls
Remove silence or unwanted edges from each file before combining the final audio.
Adjustable Crossfades
Create hard cuts or smooth transitions with multiple crossfade curve options.
Visual Duration Summary
Review track count, combined duration, and estimated output size before export.
Prepare a Clean Audio Merge
A useful merge is gain-staged and auditioned, not merely concatenated. Track order, trimmed regions, per-track level, overlap length, and the first file's sample rate all shape the exported 16-bit WAV.
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Set the sequence before exporting
Arrange tracks in the intended listening order, trim silence or unwanted edges, and set each track's gain before adding overlaps. Boosted tracks and overlapping loud sections can clip even when the individual source files do not.
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Use crossfade to connect tracks
Start with a short Equal Power crossfade, then preview vocals, drums, and sustained notes through the handoff. A curve changes the fade shape; it does not align beats, match keys, or choose a musically suitable transition for you.
Audio Tools
Frequently asked questions
How many files can I merge?
Up to 20 files. All processing happens in your browser.
How does crossfade work when merging audio?
A smooth transition between tracks where the end of one fades out while the next fades in, eliminating abrupt cuts.
Which crossfade curve should I use?
Equal Power is a practical starting point for music because it can keep perceived loudness steadier through the overlap. Linear is the simplest curve, Exponential changes more sharply, and S-Curve eases into and out of the blend. Always preview the transition because the source material matters more than the curve name.
Can I trim tracks before merging?
Yes. Use the Trim button on each track to set start and end points; only the trimmed region is included in the merge.
Will merging MP3 files reduce audio quality?
The tool exports one uncompressed 16-bit WAV at the sample rate of the first file. MP3 export is not available, and converting a lossy source to WAV does not restore detail already removed by its original encoding.
How do I join songs smoothly without an abrupt cut?
Use a crossfade between adjacent tracks. Equal Power is a practical default because it helps the transition keep an even perceived loudness.
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Audio Tools
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