Current Version
Version 2.0 (Windows)
Download WARPSimLab
WARPSimLab is a full-featured, free educational personal finance and retirement simulation application for exploring income, expenses, taxes, portfolio behavior, and long-term outcomes over time.
It supports Historical Window analysis, Monte Carlo simulation, deterministic projections, and side-by-side scenario exploration so you can compare how the same plan behaves under different assumptions and market paths.
WARPSimLab runs locally on your computer and does not send your data to external services or websites.
Ready to try it? Download the current Windows release below.
Release Information
Price
Free
License
MIT License (source code not currently distributed)
Installation
No installer required. Runs as a standalone executable.
File Size
Approximately 25 MB
Author
Alan Scott
What You Get
The Windows build includes the standalone WARPSimLab application for local use. It is intended for educational exploration only and does not provide financial, investment, tax, or legal advice.
Historical Window Analysis
Apply the same plan across rolling historical market periods to see how timing affects outcomes.
Monte Carlo Simulation
Run the same plan across many simulated market paths to examine a range of possible outcomes.
Scenario Explorer
Compare baseline and modified assumptions side by side without changing saved data.
Cash Flow and Portfolio Modeling
Explore income, expenses, taxes, withdrawals, asset allocation, and long-term balances.
Local Execution
The simulator runs on your computer and does not intentionally transmit entered financial data to external services.
Educational Use
Designed for exploration and learning, not as a substitute for professional advice.
How to Install and Run on Windows
Important: WARPSimLab is distributed as a ZIP file. You must extract it before running.
- Download the ZIP file: Use the download button below to download WARPSimLab.
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Extract the ZIP file: Right-click the downloaded ZIP file and select Extract All....
This step is required. The program may not run correctly if you try to launch it directly from inside the ZIP file. - Open the extracted folder: Open the newly created folder, not the compressed ZIP archive.
- Launch the program: Double-click WARPSimLab.exe.
Windows security note: WARPSimLab is independent freeware and is not currently code-signed. Because of that, Windows may display a "Windows protected your PC" warning. This is expected behavior for unsigned software.
To continue running the program:
- Click More info
- Click Run anyway
Download for Windows
WARPSimLab is currently available for Windows. macOS and Linux releases are planned for later.
Windows
Available now
Standalone packaged release for Windows.
Download Windows BuildmacOS
Coming later
Future packaged release placeholder for macOS.
Linux
Coming later
Future packaged release placeholder for Linux.
Documentation: See the release notes for version history and release details.
Before You Download
WARPSimLab is free educational software created by Alan Scott. It is intended to help users explore personal finance and retirement scenarios, not to provide predictions, guarantees, or professional advice.
New users may want to review the FAQ, the Historical Window page, the Monte Carlo page, or the Scenario Explorer page before downloading.