Merge Audio: join multiple audio files into one seamless track

Upload two or more audio files and combine them end-to-end into a single track. Reorder clips, trim each one, adjust volume, add crossfades between tracks, and preview the full sequence. Download as MP3 at the quality you need (128, 192, 256, or 320 kbps) or as lossless WAV. Everything runs in your browser: your audio never leaves your device.