Introduction

ahLOOKah is a free, open-source VJ tool that turns live audio into a fullscreen visual show — right in your browser. Nothing to install, nothing to set up.

What it does

A floating control panel drives a fullscreen output window in realtime. Pick a pattern from a library of 58 audio-reactive sketches, tweak its parameters live, and key your favorites to the number row. When it's showtime, CUE mode lets you warm up the next look behind the scenes and cut to it instantly with zero blank gaps.

In this guide

• Getting Started — browser requirements and first-run device setup.
• The Interface — a tour of the control panel and output window.
• Patterns & Parameters — browse the library and shape a look.
• Custom Scripts
• Node Patterns — build a pattern by wiring sketches, blends and audio-driven scripts.
• Media Patterns — play your own images and videos as patterns.
• Slots & Shortcuts — map patterns to keys 1–0.
• Blending Two Patterns — merge effects with blend or additive modes.
• Post-processing — brightness, contrast, and saturation trim.
• EQ & Noise — band-split EQ and noise-floor capture.
• Cue Mode — stage the next look and take it live.
• Screen Mapping — square up a projector with four corners.
• Projection Mapping — build patterns of independently warped surfaces.
• Devices & Setup — switch camera and microphone inputs.
• Projects — save a whole show to one file, open it anywhere, or start fresh.