Drop a beat, pick the hook, get a 9:16 MP4 with animated waveform and BPM · Key · Camelot overlays — TikTok-ready in seconds. Made for type-beat producers.
MP3 / WAV / FLAC / M4A. We auto-detect BPM, key and Camelot for the overlay.
Trim to a 3-30 second window. Choose what to show in the overlay.
Vertical 1080×1920 video, ready to drag into IG / TikTok / Reels.
ffmpeg-rendered waveform pulses to your beat in the brand gradient.
1080×1920 H.264 MP4 — no cropping, no letterbox.
BPM, key and Camelot pulled from our analyser — no manual entry.
9:16 is the native format on every modern social feed (TikTok, Reels, Shorts, IG). Square and landscape get cropped or downranked.
3 to 30 seconds. The most-shared producer promos sit between 12 and 20 seconds — the perfect hook-loop window.
Free tier shows a small `signalkey.io` line at the bottom. Pro removes it; Studio adds custom branding (your producer tag).
Yes — toggle the title, BPM, key and Camelot pills individually. Pro adds custom colour and logo upload.