capfuse: Mashup & Remix Maker

About this app

Make a mashup in 30 minutes — even if you have never DJed. Import a track and capfuse splits it into vocals, drums, bass and other, detects its key and BPM, and shows you which songs in your library fit with it. You decide which phrase goes where — capfuse makes sure it lands on the beat. AUTOMATIC STEM SEPARATION Every track you import is split into four parts — vocals, drums, bass and other — automatically, and for free. Lift a vocal onto another song, or mute it and play the instrumental back inside the app. WHY MASHUPS ARE HARD — AND WHY THIS IS NOT Blending two songs normally means knowing music theory, matching keys by ear, and nudging tempos until they lock. capfuse does all three for you. AUTOMATIC KEY AND BPM DETECTION Import from your music library or from files. Every track is analyzed and tagged with its key and tempo. Video files such as mp4 work too — the audio is extracted automatically. COMPATIBLE TRACK SUGGESTIONS Pick a base track and capfuse lists the songs in your library that are harmonically compatible with it. No Camelot wheel, no guesswork. Choose from what already works. AUTOMATIC BEATMATCHING Tempos are synced for you. Decide which phrase goes where and capfuse handles the alignment. BUILT-IN LIBRARY Finished mashups are saved to your library and play back like any music app, including background playback. FREE TO START Import tracks, split stems and build mashups for free. Upgrade to premium for unlimited assets and unlimited mashups. Made for anyone who has ever heard two songs and thought "those would go together."

bug fix

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Aug 21, 2026 · 9:24 PM Free