Overview
Reactor is a package manager for DaVinci Resolve's Fusion page, maintained by the We Suck Less community at steakunderwater.com. You install it once by pasting a short script into the Fusion console, which adds a Reactor menu that downloads and updates everything else.
From there you can pull in hundreds of free tools: planar and point trackers, particle systems, the KartaVR set for 360 footage, color and keying utilities, macros, and interface tweaks. Packages are versioned and update from the project's public repository, so a tool you install today keeps getting fixes. It runs on Resolve Free and Studio across macOS, Windows, and Linux, and works in standalone Fusion Studio as well.
Reactor is featured in our comparisons Best Free DaVinci Resolve Plugins (2026) and Best VFX Plugins for DaVinci Resolve.
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Pros
- Completely free with regular community updates
- Huge library of useful tools across categories
- Easy installation via built-in package manager
Cons
- Documentation is community-driven and inconsistent
- Quality varies between tools
- No official vendor support
Verdict
Reactor is free and genuinely useful for expanding what Fusion can do, but it's a community grab-bag: documentation is inconsistent and quality varies tool to tool. Expect to test things yourself rather than relying on polished, vendor-level support.
Reviewed by JérémyRelated DaVinci Resolve Plugins from the Store
