Offline project planner for Windows, macOS and Linux
shadow-planner is a desktop project planner that works fully offline. Your Gantt charts, resource plans and scenarios live in a local database on your own machine — no account, no cloud, no sync.
Most project planning tools today are websites. That's convenient until you're on a plane, at a client site without guest Wi‑Fi, or handling a plan that contractually can't leave your laptop. shadow-planner is a desktop application: install it, open it, plan — with or without a connection.
What "offline" means here
- No account. The app opens the first time you launch it. There's nothing to sign up for.
- Local database. Everything — projects, tasks, employees, allocations, scenarios, snapshots, the audit log — is stored in a SQLite file in your user profile.
- No sync, no telemetry. Nothing is uploaded anywhere. The only network traffic the app generates is (a) the optional one-time Stripe checkout if you upgrade, and (b) requests to a cloud AI provider if you chose one. With the default local model, there is none at all.
- Works on the train. Gantt, utilisation, portfolio, scenarios, export — all of it is local code running on your machine.
Even the AI can be offline
The AI assistant and planning agent run against a local model through Ollama by default. Pull a model once and you have an assistant that can draft plans and answer questions about your schedule with zero connectivity. Cloud providers (Anthropic Claude, OpenAI, OpenRouter) are opt-in, per request, and receive only your chat messages — never the database. See local LLM planning.
Platforms
| Platform | How to install |
|---|---|
| Windows 10 / 11 | Microsoft Store — updates automatically |
| macOS (Apple Silicon) | Direct .dmg download |
| Linux | Snap Store — updates automatically |
Light and dark themes follow your operating system setting.
Getting data in and out
Offline doesn't mean isolated:
- Import employees from Excel (
.xlsx); import allocation and actuals from CSV; bootstrap a scenario from JSON. - Export any scenario to JSON, XLSX or CSV for stakeholders.
- Snapshots give you a point-in-time copy you can keep or share.
- Audit log records every change — whether you made it in the UI or the assistant did — so a local file is still a trustworthy record.
Pricing that fits a local app
There's no server to pay for, so there's no subscription. The free tier (1 scenario, 3 projects, 3 employees) is unrestricted in features; a €4,99 one-time purchase removes the limits for good and never needs to re-verify online.
Install shadow-planner and plan wherever you are.