Audio File Merger

Combine multiple audio files into one – adjust volume per track, reorder, export as MP3 or WAV

Drag & drop audio files here or click to browse

How to merge audio files:

  1. Select multiple audio files (MP3, WAV, OGG, M4A, FLAC, etc.)
  2. Adjust each track's volume using the slider below each file (0 = mute, 1 = original, >1 = boost)
  3. Choose output format (MP3 recommended) and bitrate in the settings panel
  4. Click "Merge Tracks & Export" – all tracks will be concatenated (not mixed) into one audio file
  5. Download the merged result – perfect for creating continuous mixes, audiobooks, or playlists

All processing happens in your browser using Web Audio API – files never leave your device.