Mix and merge audio (MP3) online
Mix audio online with crossfade
Combine multiple clips, mix MP3s in your browser, and add crossfade. Export a single MP3 ready to share. Formats: OPUS, AMR, OGG, M4A, WAV, MP3.
Add one or more audio files, select each segment on the waveform with your mouse, preview the mix, and download it as MP3.
Prefer a simpler, mobile-friendly mixer without the waveform editor? Try the simple audio mixer .
Accepted formats: .opus, .amr, .ogg, .m4a, .wav, .mp3.
Drag & drop your audios here, or click “Add audios”.
Tip: if they’re WhatsApp voice notes, convert to MP3 first, then trim/mix.