Music Joiner & Stem Splitter Online
Defyaudio gives you a complete set of free online music tools — join songs with the music joiner online, split any track into music stems with AI, merge or convert audio files. Everything runs locally in your browser for complete privacy. No files are ever uploaded to a server.
Music Joiner Online & Free Music Merger
Defyaudio's music joiner online lets you merge multiple audio tracks into one seamless file. Whether you need a free music merger for a podcast, mixtape, or audio project, it works entirely in your browser — no software to install.
Join unlimited tracks
Use the music joiner online to combine as many clips as you need — MP3, WAV, FLAC, OGG, M4A and more.
Crossfade transitions
Blend tracks smoothly with a custom crossfade duration — essential for DJ mixes and continuous playlists.
Music merger with silence gaps
Insert pauses between tracks with the free music merger — ideal for podcast segments or audiobook chapters.
Any format in, any format out
Mix different audio formats freely and export your merged track to MP3, WAV, FLAC, or OGG.
Free Music Stem Splitter — Extract Music Stems Free
Defyaudio's free music splitter uses Demucs AI to separate any song into individual stems. Extract vocals, drums, bass and instruments — get music stems free with no quality loss, directly in your browser.
Vocals
Isolate the vocal track with the free music stem splitter — perfect for karaoke or acapella versions.
Drums
Extract the drum stem free to use for sampling, practice, or creating a drumless backing track.
Bass
Separate the bass line from the mix — ideal for transcription, learning, or remixing.
Other instruments
Get guitars, keys, and synths as a clean stem, separate from vocals, drums and bass.
Why Use Defyaudio's Free Music Tools?
Unlike most online music tools, Defyaudio processes everything locally in your browser — your music files are never uploaded to any server.