DeepSeek Harness Desktop for macOS and Windows

DeepSeek Harness is now in public preview worldwide, offering an open-source platform built on a "everything is a plugin" architecture. Available as a desktop app for macOS and Windows or a web UI, it assists with everyday tasks, coding, research, and background tasks. Users can install or create plugins to extend its capabilities, organize documents, analyze data, write code, and manage scheduled tasks, with developer tools for inspecting execution traces.

This is the first public preview of DeepSeek Harness, an open-source platform that supports desktop apps for macOS and Windows, unlike many web-only AI tools.