Desktop AI assistant · Windows & macOS · MIT open source
Hand the everyday office grind to the fox on your desk.
DeskFox drafts emails, polishes reports, works with Excel, reads PDFs and sketches slides, with your real files instead of a chat box. Free, open source, and it runs with bundled free models or the provider you choose.
- What it is
- A desktop AI assistant for everyday office work, made by DeskFox.Ai.
- Platforms
- Windows 10 / 11 (x64) and macOS 12 or later (Apple Silicon and Intel).
- Price
- Free. MIT-licensed open source; free models included, your own API keys optional.
- Your data
- Files and chat history are stored locally. Prompts and file content used for AI requests may be sent to the selected model provider under its terms. Anonymous usage statistics and session sharing are described in our privacy policy.
- Origin
- A fork of the open-source sst/opencode, repositioned for non-developers.
What it does
Repetitive work, handled. Decisions stay with you.
DeskFox doesn't think for you. It handles repetitive work so you can focus on decisions that matter.
📄 Document Companion
Read, edit, and summarize Word / Excel / PDF / Markdown. Right-click any selection to add it to chat with auto-located context. The viewer auto-refreshes after the model edits a file.
✍️ Drafting Assistant
Draft emails, weekly reports and meeting notes from your topic and key points. Review the output before using it.
📊 Data Wrangling
Excel formulas, CSV cleanup, pivot analysis, basic charts. Translate "I have a sheet, show me the trend" into charts and conclusions—no formula learning required.
🔐 Privacy First
Files and chat history are stored locally. Prompts and file content used for AI requests may be sent to the selected model provider under its terms. Anonymous usage statistics and session sharing are described in our privacy policy.
Data Security
Local files. Clear model-provider boundaries.
Files and chat history are stored locally. Prompts and file content used for AI requests may be sent to the selected model provider under its terms. Anonymous usage statistics and session sharing are described in our privacy policy.
Local-first
Document processing happens on your machine. Chat history is stored in a local database. API keys are encrypted and kept locally — they never reach any DeskFox server.
Auditable Open Code
MIT-licensed, fully open on GitHub. Every line of code and every commit is public — read it yourself, or have someone you trust read it.
Pick Your Model
Free models, your own API keys, or self-hosted (coming) — different sensitivity, different choice. You decide who sees your data; no vendor lock-in.
Transparent Network Activity, No Hidden Calls
Basic anonymous usage statistics are disclosed in our Privacy Policy; publishing a session uploads its content as described in the sharing notice; there are no hidden calls. The source is fully open — anyone can verify.
Why DeskFox
Plenty of AI tools out there—we solve "can't install, can't use, can't trust."
DeskFox is not "another ChatGPT wrapper"
it's a desktop assistant designed around real office workflows for non-developer users.
Open & Auditable
MIT-licensed open source, full code on GitHub. Worried about where AI tools send your data? Read the code yourself, or have someone you trust read it.
From sst/opencode
Forked from sst/opencode, an open-source project audited daily by global developers. Inherits a stable engineering foundation. Our job: translate it for office users.
Free Models Built-in
OpenCode Zen free models bundled (MiniMax / Hy3 / Nemotron). Install and chat. No top-up, no API signup—the default options are usable from day one.
Switch Models Freely
Need more power? Switch to Claude / GPT / Gemini or domestic Chinese models with one click. Your API keys, your control—no vendor lock-in.
Native, Cross-platform
Windows uses Tauri + WebView2; macOS uses Tauri + WKWebView. Fast startup, low footprint, direct local file access. Better than juggling browser tabs.
Multilingual UX
Simplified Chinese, Traditional Chinese, and English UI. Prompts and shortcuts designed around real-world office habits in each language.
About DeskFox
From a developer tool to your desk-side companion.
Background
DeskFox is a fork of sst/opencode. The original is an AI coding tool for developers; we forked it and repositioned it as a daily AI work companion for office users—simplified UI, rebranded, enhanced document preview, and engineered packaging and release.
We keep the MIT license, publish all changes on GitHub, and follow upstream releases. Every line of code—including the build and signing pipeline—is visible in the repository.
Technology & Distribution
Native cross-platform: Built on Tauri + Microsoft WebView2 (Windows) / WKWebView (macOS). Faster startup and lower footprint than Electron, with direct local file access.
AI providers: Anthropic Claude, OpenAI, Google Gemini, plus the OpenCode Zen free-model gateway — all switchable from a single UI; your API keys stay on your machine.
Distribution: direct download from deskfox.ai. MIT-licensed, source at GitHub.
Download DeskFox
Free · Open Source · Models Included
Choose your platform: Windows 10 / 11 x64 or macOS 12+. Buttons download directly from GitHub.
On your Mac, open Apple menu → About This Mac. “Chip” means Apple Silicon; “Processor: Intel” means Intel.
Windows install: about the first-launch "security warning"
The Windows installer is currently unsigned, so Windows may show a publisher or SmartScreen warning. Check the download source before deciding whether to proceed. If no installer window appears, report your Windows version and the error through GitHub Issues; this symptom can have multiple causes.
- Download from the linked GitHub release or listed mirror.
- Read any Windows warning before continuing. Cancel if you are unsure.
- Use the installation support link below if the installer does not open.
Your first task, in three steps.
- Install the build for your computer and open DeskFox.
- Choose a bundled model or configure your own provider. Start with a non-sensitive copy of a document.
- Ask for a short summary, check it against the original, then try an edit on the copy.
Release notes & versions · Installation support · Privacy policy
FAQ
Questions people ask before installing.
- Is DeskFox free?
- Yes. DeskFox is free and MIT-licensed open source. It ships with free models through the OpenCode Zen gateway, so it works right after installation. You can add your own API keys for Claude, OpenAI, Gemini or Chinese providers if you want more capable models.
- Does DeskFox upload my files?
- Files and chat history are stored locally. Prompts and file content used for AI requests may be sent to the selected model provider under its terms. Anonymous usage statistics and session sharing are described in our privacy policy.
- Which AI models can I use?
- Bundled free models (MiniMax, Hy3, Nemotron via OpenCode Zen), plus Anthropic Claude, OpenAI, Google Gemini and major Chinese providers with your own API keys. Switching is one click inside the app.
- Windows shows a security warning. Is the installer safe?
- The Windows installer is currently unsigned, so Windows may show a publisher or SmartScreen warning. Check the download source before deciding whether to proceed. If no installer window appears, report your Windows version and the error through GitHub Issues; this symptom can have multiple causes.
- Where does DeskFox come from?
- DeskFox is a fork of sst/opencode, an open-source AI coding tool. We repositioned it for office users: simplified interface, document preview, packaging and release engineering. All changes are public and we follow upstream releases.
Community
Join the DeskFox Community
Ask questions, share ideas, and connect with other users — GitHub Discussions for the world, the official group chat for China.
Global
GitHub Discussions
Public, searchable Q&A and discussion. Best for English-speaking users, developers, and anyone browsing past threads.
Open Discussions
China
Lark (Feishu) Group
Stable access inside China and real-time chat. Scan to join the official DeskFox group and talk with the team and other users.
Scan with Lark to join · QR code never expiresmacOS update notice for older versions: If you're on 2026.8.0 or earlier, clicking "Install and Restart" may do nothing — a known minor issue in older builds. Please download the latest version and reinstall over the top once (your data is kept); auto-update will work again afterwards.