VJam – Browser-based VJ app with 180 beat-reactive visuals

Show HN: VJam – Browser-based VJ app with 180 beat-reactive visuals

VJam – Browser-based VJ app with 180 beat-reactive visuals is active in the show hn launch space.

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Hey HN,I built VJam, a browser-based VJ app that turns your phone into a live visual controller.What it does: Listens to music through the mic, detects BPM, and generates real-time beat-reactive visuals. 180+ presets, touch gestures, blend modes, text overlays, video/image layers — all in the browser.Tech stack: Vanilla JS, Web Audio API (FFT + beat detection), p5.js for Canvas rendering, PWA (works offline after first load). No frameworks, no build step, no server — just static files on Vercel.Why I built it: Professional VJ software (Resolume, VDMX) costs $200-400 and requires a laptop. I wanted something that works on a phone, connects to a projector via HDMI adapter, and costs less than

The company sits in the show hn launch segment, where it competes on its core product or service.

Its current recorded stage is Show HN launch.

Website: vjam.vercel.app2-min