Jamorphosia

Jamorphosia is an AI mashup maker tool. A browser tool that splits songs into stems so you can remove or isolate vocals, guitar, bass, drums and piano. Built for practising players, teachers and remixers, with an optional account for longer files and a saved library.

Jamorphosia is a web-based stem separation service aimed at working musicians rather than studio engineers. You upload a track, pick which instrument you want gone (or want kept), and the site returns separated audio you can play along to. The supported targets are vocals, guitar, bass, drums and piano, which covers the needs of most cover bands, solo performers and teachers. There is nothing to install: the whole workflow runs in the browser. The practical use cases are spelled out on the site and they line up with how players actually practise. Guitarists strip the guitar part and take it over themselves. Drummers remove the kit to sit in with the original groove. Singers get a karaoke version of any song in two clicks. Bassists use the bassless mix to work on timing against a real rhythm section. Producers and remixers use the isolated stems as samples. Teachers build backing tracks and soloed parts for students. The site also accepts the reverse operation: isolating an instrument rather than removing it. Input formats are MP3, WAV, WMA, M4A and MP4, capped at 50 MB per file. Output can be rendered at 128, 192 or 320 kbps, and the site advises starting from the highest-quality source you have. Processing typically takes thirty seconds to two minutes for a three to four minute song depending on server load. The site is honest about limits: on dense productions or heavily processed vocals, some residue of the removed element can remain. Compared with studio-grade source separation suites, Jamorphosia is narrower and friendlier. Its distinguishing feature is a preview gate: you hear the first minute of the result before confirming, and if the quality is not good enough nothing is deducted from your processing allowance. It runs in nine languages and works without registration, with anonymous output cut to one minute. An account, free to open and requiring no card, unlocks longer processing and a personal library where past separations can be replayed and re-downloaded.