Prism

Overview

Features described in its GitHub repository and on its official website: effects and transitions.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

At a glance

Prism is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Plans and conditions

• Free content: the free library can be used without paying, under the publisher’s licence.

About

Prism is a beginner-friendly live visuals app for triggering clips and compositing overlays in real time. Made for school events, small concerts, and sports, it combines instant clip triggering with hands-on control of the program output. Instead of a fixed grid, clips live on a node-based canvas with groups, transform contexts, and audio routing — click to trigger, with no scenes or playlists to manage. Features: Node-based clip canvas with groups, transform contexts, audio routing, and a VJ hotkey grid Many source types: video, images, slideshows, webcams, screen and window capture, GLSL shaders, HTML/QML overlays, text, Lua scripts, NDI inputs, and phone cameras over WebRTC Live A/B deck mixing with a crossfader and per-deck speed control Per-clip trim, crop, transform, and composited text/image overlay editing Audio spectrum analysis driving shader inputs, plus master audio routing Reusable asset library with drag-and-drop onto the clip canvas Program output hub: mirror windows, optional NDI output, virtual-camera output, and program video/audio recording Panic controls: instant blackout, freeze-frame hold, and stay-tuned overlay OBS WebSocket integration and network remote control Session save and load with autosave and smart asset relinking

Description from Flathub — AppStream (Flathub)