Your machines, projects and agents — in one window.
Mainframe is a personal control plane. It watches the coding agents running
across your machines, keeps your projects and coding agents in one place,
and draws your notes vault as a live graph you can actually navigate.
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Download for Windows · version 0.1.38 · 36 MB · 21 September 2026
Windows 10 or 11, 64-bit
In this build: Terminal links open directly in the default app without a confirmation prompt. Includes current Mainframe desktop and bundled agent runtime improvements.
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Download for Mac · version 0.1.23 · 66 MB · 28 August 2026
macOS 12 or later, Apple Silicon
In this build: macOS build (Apple Silicon)
What you get
Mission control.Every agent session across your machines, live — what it is
doing, what it is stuck on, and a chat you can answer from.
The vault, as a graph.Your notes and capabilities drawn on the GPU, searchable,
with the parts an agent is working on lit up as it works.
Worktrees and services, bundled.Ships with its own Python and the kwt supervisor, so
branches, agents and dev servers are all one click away. Nothing else to
install.
Updates itself.Signed updates, checked on launch and verified before
anything is installed.
Download for Windows: Windows will warn you. The installer is not code-signed, so SmartScreen shows “Windows protected your PC”. Choose More info → Run anyway. Updates are separately signed and verified by the app itself before they are applied.
Download for Mac: Open the .dmg and drag Mainframe to Applications. The first time you open it, macOS will say it cannot check the app — right-click it and choose Open, then confirm. That is only needed once.