CedarCedar
Free · Open source · Runs on your Mac, PC or Linux box

Your own assistant.
Runs at home,
answers to you.

Give Cedar a task: research, documents, trips, your finances. It plans the work, does it in a sealed box, and shows you where every answer came from. Nothing leaves your computer unless you say so.

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Mac app for Apple silicon · Windows app for x64 · Linux from source · Apache 2.0 · built in the open on GitHub
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The plan · you can edit it
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PDF
ev-battery-makers.pdf is ready14 sources, every claim linked · 2 min 10 s
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What it does

Real tasks, done for you.
Not just answers.

Cedar searches the web, reads your files, runs the numbers and writes the result: a report, a spreadsheet, a map, a chart. You see the plan before it starts and the sources when it's done.

01

Finds places and pins them on a map

A good flower shop, a quiet café, a trailhead for Saturday. Cedar searches, picks the best, and hands you a map with addresses, hours and the website for each.

Cedar for Mac showing three flower shops pinned on a map of Portland
Cedar charting glucose readings against a 7-day average
02

Reads your data and draws the chart

Spreadsheets, PDFs, bank exports, even a connected health device. Cedar runs the numbers and explains them in plain words, with interactive charts you can hover over.

03

Works on a schedule, even while you sleep

Turn any conversation into a schedule: every morning at 7, every Friday. It runs while you sleep and tells your desktop or iPhone when it's done.

Cedar for Mac scheduling a daily sailing weather report for 10:00 AM
Cedar settings with a toggle for each tool
04

Every ability has a switch

Weather, maps, recipes, directions and transit, stocks, shopping, your email and calendar. Turn on what you want Cedar to reach. Everything else stays off.

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Private by design

Your assistant.
Your machine. Your data.

Most assistants run in someone else's cloud. Cedar runs at home, and treats every task like a stranger in the house.

Stays on your machine

The model, your conversations and your files live on your machine. No account, no cloud, nothing to subscribe to.

Each task in a sealed box

Every task gets a fresh, throwaway workspace that can't see your documents, your photos or the internet unless you allow it. When it's done, the box is gone.

Asks before anything risky

Sending an email, downloading a file, deleting something: Cedar stops and asks. You approve once, or always, or never.

Yours to shape

Pick the brain.
Add the hands.

Cedar isn't tied to one AI company. Run a model on your Mac or PC with Ollama or LM Studio, serve one from a Linux GPU box with vLLM, or point it at a server you trust. Switch between them per conversation.

Need something specific? Add a tool from the community with one click, after seeing exactly what it asks for. The first one reads an insulin pump and compares your day with your week.

Browse community tools →
Cedar settings listing three models you can switch between
Mac, Windows, Linux & iPhone

On your desk.
In your pocket.

Pick the computer that does the work: a Mac, a Windows PC or a Linux box at home. Whichever it is, Cedar for iPhone pairs with it and keeps up: the same conversations, maps and charts, a question when it needs one, and a notification when a task finishes while you're out.

1 · On your desk, pick one

Cedar for Mac

Lives in your menu bar. For Apple silicon.
Download
Cedar for Mac, ready for a new task, with recent conversations and a scheduled agent

Cedar for Windows

Lives in your tray. Installer for x64 PCs.
Download
Cedar for Windows, ready for a new task, with a recent conversation Not code-signed yet, so Windows warns the first time: choose More info, then Run anyway.

Cedar for Linux

Got a GPU box or a home server, like an NVIDIA DGX Spark? One script builds Cedar from source, starts it next to vLLM, and serves the chat to your browser and your iPhone. Same sealed boxes, same guardrails.

Read the Linux guide →
# build and start everything
git clone https://github.com/hanneshapke/cedar
cd cedar && scripts/cedar-stack.sh

# show the code your iPhone scans
scripts/cedar-stack.sh --pair
2 · In your pocket, with any of them

Cedar for iPhone

Invite only for now. Request yours →

Paired with one scan, whatever Cedar runs on. The phone reaches it over a private connection (Tailscale); nobody else can.

MacTick one box in the iPhone & iPad settings.
WindowsThe same box, in the same place.
LinuxRun cedar-stack.sh --pair
Then scan the code with your iPhone. Done.
Cedar for Mac showing the QR code that pairs the iPhone app Cedar for iPhone showing flower shops on an Apple Maps card
Compared

Cedar, OpenClaw,
Muse and Claude Duet.

Four assistants that do tasks for you. OpenClaw lives in your chat apps and acts on your computer. Muse is Meta’s, run in Meta’s cloud. Claude Duet is Anthropic’s, a proactive agent on its own computer in Anthropic’s cloud. Cedar runs at home, on a Mac, a Windows PC or a Linux box, and keeps every task in its own sealed box.

Cedar vs.

Cedar

Free · open source

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OpenClaw details from its README, October 2026. Muse details from Meta’s launch announcement and press coverage, September 2026. Claude Duet details from Anthropic’s product page, October 2026. Corrections welcome.
Setup

Three things, then you're talking.

On a Mac or a Windows PC, Cedar needs two free helpers, and the app walks you through both the first time it opens. On Linux, it's the same three steps from a terminal; the Linux guide has the details.

1

Install Docker Desktop

It builds the sealed boxes each task runs in. Free, one download. OrbStack works too on a Mac, Rancher Desktop on Windows. On Linux, Docker Engine.

2

Install a model

Ollama or LM Studio put an AI model on your Mac or PC in minutes. On a Linux GPU box, run vLLM. Already have a server elsewhere? Use that.

3

Open Cedar

Pick your model from the list, and give it a task. On Linux, run scripts/cedar-stack.sh and open the chat in your browser. Pair your iPhone whenever you like.

{{ dl.label }} Mac & Windows setup guide → Linux guide →