Selvage is a Visual Studio Code extension for live collaborative editing over the Selvage session protocol. It supports shared editing and pair-programming workflows using CRDT-based synchronization, including Yjs-related collaboration technology.
In the Async & threaded space, Selvage takes a focused approach. It enables developers to edit and pair program together in real time through shared Selvage sessions. Selvage is a B2B product aimed at developers using Visual Studio Code. Selvage is available on the web, Windows, macOS, and Linux.
Behind Selvage is Selvage Protocol, and it first shipped in 2026. Among its 5 catalogued features are live collaboration, pair programming, and CRDT synchronization.
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