Audiotool has launched Audiotool 3.0, a free browser-based cloud DAW rebuilt from the ground up. The new version adds real-time multiplayer creation across devices, alongside NEXUS, an open-source SDK that lets musicians and developers build custom instruments, effects and apps directly inside the platform. It runs on web browsers and tablets now, with native mobile apps to follow.
A multiplayer DAW
Audiotool 3.0 allows multiple users to work on the same project simultaneously from different devices, with the company claiming the lowest latency of any online music tool. The approach draws deliberately from gaming: the platform frames collaborative creation as genuinely multiplayer, targeting a generation of creators who already collaborate online.
For producers already working remotely, our roundup of the best remote music collaboration tools covers the wider landscape of what’s available in 2026.
NEXUS: building tools inside the platform
NEXUS is Audiotool’s open-source SDK for extending the platform beyond its built-in toolset. Developers can use it to build instruments, effects, visualizers, music games, educational content and hardware-connected apps that run directly inside the DAW. The SDK is also AI-enabled, using MCP and Context I/O to connect a creator’s preferred LLM to their Audiotool session.
Launch partners already in the NEXUS ecosystem include Splice, Ujam, BandM8 and Fraunhofer, Europe’s largest organisation for applied research.
Audiotool is free. The platform first launched in 2010 as one of the first browser-based DAWs, running in Flash, before moving to a full HTML5 rewrite in 2017. Other free DAW options have been expanding on mobile; Audiotool’s real-time cross-device multiplayer is its sharpest differentiator.
See also: Muse’s approach to real-time session collaboration.
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