MP3 → MP3
Merge Audio Files
Merge or join multiple audio files into one in your browser with local processing, without uploads or watermarks.
Drop your file here or click to browse
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Duration:
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Original size: →
Crop area
Original size:
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Normalizes perceived loudness to broadcast standard (-16 LUFS). No settings needed.
Automatically detects and removes letterbox black bars from all sides.
Drop a video file to view its codec, resolution, duration, and file size.
Preview
Your file is ready to download
Your files never leave your browser
Frequently asked questions
What audio formats can I merge?
MP3 and WAV files. The output is a single MP3 file.
Are my files uploaded?
No. Everything runs locally in your browser. Your files never leave your device.
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