Open source · MIT · DeepSeek Harness Desktop Editions

Your agent harness, at home on the desktop.

DeepSeek Harness Desktop runs the official dsh Web UI — untouched — inside native shells for Windows, Linux, macOS and HarmonyOS. The agent host lives in the app itself, talking to the UI over localhost: no cloud relay, no CORS, no account. Tray, notifications and a built-in plugin marketplace included.

  • Windows
  • Linux
  • macOS
  • HarmonyOS
Get DeepSeek Harness Desktop HarmonyOS edition How it works

Desktop v0.1.x prerelease · HarmonyOS device-verified (6.1.0.135 / API 24)

DeepSeek Harness Web UI in light theme running inside the native desktop shell, in Simplified Chinese DeepSeek Harness Web UI in dark theme running inside the native desktop shell with the Windows title bar, in Simplified Chinese

DeepSeek Harness running in its native shell.

why a native shell

Why a native shell

The whole dsh experience — none of the browser tab.

100% official dsh — zero upstream changes.

The official Web UI, WebApiClient and every plugin run unmodified. The agent core is never forked, so dsh upgrades land the day they're released.

Local-first, in-process.

The dsh Host runs inside the app and the UI talks to it over localhost. Everything stays on your machine — no cloud relay, no CORS, no account.

A desktop citizen.

System tray, native notifications, a frameless window and clipboard image paste. The agent harness behaves like a first-class desktop app — because it is one.

Plugins, one click away.

The built-in visual marketplace (dsh-market) lets you browse and install plugins right inside Settings, live.

choose your desktop

Choose your desktop

DeepSeek Harness Desktop

Electron · Windows · Linux · macOS
  • System tray & native notifications
  • Frameless window with custom title bar
  • Clipboard image paste
  • Built-in plugin marketplace (dsh-market)
  • Native installers: Squirrel (Windows), DMG (macOS), deb/rpm (Linux)
  • Status: v0.1.x prerelease
View on GitHub

DeepSeek Harness · HarmonyOS

Electron-on-HarmonyOS · 2in1 & tablet
  • Verified on HarmonyOS NEXT 6.1.0.135 (API 24)
  • Full official dsh Web UI — 100% frontend reuse
  • On-device session persistence & full-text search
  • Built-in plugin marketplace (dsh-market)
  • Signed HAP for personal local distribution
  • Status: preview — terminal & process sandbox pending
View on GitHub

Together, both editions cover four desktop platforms — Windows, Linux & macOS (Electron) plus HarmonyOS. Independent open-source shells built on DeepSeek AI's DeepSeek Harness with zero upstream changes.

how it works

One host. One origin. Zero friction.

  1. In-process host

    The shell boots the dsh Host inside the app.

  2. Same-origin UI

    The official Web UI loads from the app's own localhost server.

  3. Official data plane

    dsh's WebApiClient drives it all — HTTP uplink, WebSocket downlink.

No CORS · No auth dance · No custom protocol · Agent core untouched.