Run DeepSeek Harness without the command line

Get DeepSeek Harness, Node.js, and a local Web UI in one desktop download. Install OK DSH for macOS or Windows, connect your OK-API key, and choose a model to start working.

Bundled Node.js 22.22.0

Integrity key: ok-dsh-release-2026-01

Local runtime · Remote model API

DOWNLOAD

Choose your operating system

SHA-256 + Ed25519 VERIFIED

64-bit x64

Windows

For Windows 10 and Windows 11

Download · 51.6 MB

View SHA-256

d59da8aa41b45ddc6c931e760d6ccb4be70ea607cd79439ebb3262e8a8aa40bb

Apple Silicon

macOS

For Mac computers with Apple silicon

Download · 292.4 MB

View SHA-256

c1940001ed527e8530dfb2818160cfcbd4f88c276252bb23731b9c6e4d872ad0

Intel

macOS

For Mac computers with an Intel processor

Download · 226.9 MB

View SHA-256

61e1b2b36f7ac11a67adad3e6af94413a71e3663340bbbcb68d7dc938700c0ff

This preview does not yet have Apple Developer ID signing and notarization or Windows Authenticode signing. Your operating system may show a security warning. OK-API Ed25519 integrity verification does not replace operating-system publisher verification.

macOS cannot verify the developer, or the app does not open?

Open the downloaded DMG and drag OK DSH to Applications. Do not run the app directly from the disk image.
Open it from Applications. If macOS blocks it, review the warning in System Settings → Privacy & Security.
If you trust this download, find OK DSH and choose Open Anyway, then confirm.

No terminal commands are required. Do not disable macOS security protections.

THREE STEPS

Download and install

Choose your operating system. Node.js and DeepSeek Harness are included.

Connect your API key

Create an OK-API account and key, then let the launcher configure your provider.

Start a session

Open the local Web UI in your browser and select an available model.

WHAT IS INCLUDED

One install, with update notifications

Guided account setup and OK-API key connection
Automatic provider setup with available model and reasoning options
Release checks and update notifications on launch
Ed25519-signed release manifest and installation artifacts

Local app, remote model requests

The launcher and Harness run on your computer. Prompts and any images or file content included in model requests are sent through OK-API to the configured upstream provider. This is not an offline model or a promise that all data stays on your device.

Read our data-handling overview DeepSeek Harness setup guide

Need an API key?

Create your OK-API account and API key

Create a free account