Your AI workbench, from the deep.

Open-source desktop client for DeepSeek Harness

Download for Windows GitHub
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One window

Chat, files, terminal and Git, surfacing together.

Whale Isle main window: chat, files and terminal side by side

Beyond the official Harness

Four things only Whale Isle has.

Themes & wallpapers

Transparent themes, frosted glass, and wallpapers from Bing, Wallhaven or your own source.

Whale-girl desktop pet

A Live2D whale girl who grows with your real token usage.

Usage stats

Token totals, a usage heatmap and peak/off-peak cost estimates.

Phone remote

Scan a QR code to reach your session from a phone. Off by default.

Desktop pet

She lives on your desktop. Give her a pat.

Click her · ♥ 0

Get started

Running in three steps.

01

Install

Download and install

Windows 10 or later, x64. Coming from the official CLI? Import your data in the launcher.

02

Configure

Add your API key

Settings → Models: pick a provider and paste your key.

03

Start

Pick a project and chat

Choose a project folder as your workspace.

Or run from source

Needs Windows 10+ or macOS 14+ (Apple Silicon), Git, and Node.js 22.19+ or 24+.

WhaleIsle — bash
git clone https://github.com/ChisaAlter/WhaleIsle.git
cd WhaleIsle
npm ci
npm run setup:harness
npm start

FAQ

Two things to know first.

Do I need my own API key?

Yes. This project provides no model credits; usage is billed by the model provider.

Why does Windows show a security warning?

The installer is not code-signed yet. Download only from GitHub Releases and verify the file against SHA512SUMS.txt.