🎯 ProbPlanner

Monte Carlo Project Duration Estimation

Stop Guessing When Your Projects Will Finish

Get data-driven completion dates with Monte Carlo simulation. Upload your task estimates, receive professional probability forecasts in seconds.

Get Your Free Forecast →
✓ No signup required ✓ Results in 30 seconds ✓ Professional PDF report included

The Project Planning Problem

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"When Will This Be Done?"

You've been asked this question countless times. You add up task estimates, pad with a buffer, and cross your fingers. But you know that single-point estimates ignore the uncertainty that plagues every project.

⚠️

Unrealistic Deadlines Kill Credibility

When projects slip past your "confident" deadline, stakeholders lose trust. You're left explaining why reality didn't match your spreadsheet—again.

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Padding Doesn't Work

Adding 20% buffer to each task? That's just guessing with extra steps. Without understanding probability distributions, you're either overpromising or leaving weeks of buffer on the table.

Data-Driven Forecasts You Can Defend

ProbPlanner uses Monte Carlo simulation—the same technique used by NASA, consulting firms, and Fortune 500 companies—to turn your task estimates into defendable probability forecasts.

Honest Probabilities, Not False Certainty

Get completion dates at 50%, 85%, and 95% confidence levels. Tell stakeholders: "We have an 85% chance of finishing by March 15th" instead of "We'll definitely finish by March 15th."

See The Full Picture

Our cumulative distribution charts show the entire range of possible outcomes. Identify high-risk scenarios and make informed decisions about buffers and commitments.

Professional Reports That Sell Your Plan

Download publication-ready PDF reports with charts, statistics, and per-task breakdowns. Present data that makes stakeholders say "This team knows what they're doing."

Three Steps to Better Forecasts

1
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Prepare Your Estimates

Create a CSV file with task estimates: optimistic (5%), most likely (50%), and pessimistic (95%) scenarios. Support for multiple experts (SMEs) and task dependencies built-in.

Download CSV Template →
2
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Run The Simulation

Upload your file, enter your email and start date. Our engine runs 100,000+ Monte Carlo iterations in seconds, modeling realistic probability distributions for each task.

3
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Get Actionable Insights

Receive a comprehensive report with probability distribution charts, completion dates at multiple confidence levels, risk analysis and buffer recommendations, plus downloadable PDF and raw data.

Built by Engineers, For Engineers

100,000+ Simulations Per Analysis

We don't cut corners. Every forecast runs the full Monte Carlo simulation for statistically valid results you can trust.

Supports Complex Dependencies

Model sequential tasks, parallel work streams, and critical paths. ProbPlanner handles real-world project complexity, not just independent task lists.

Production-Grade Infrastructure

Built on AWS with enterprise monitoring, 97% test coverage, and comprehensive logging. The same reliability standards you'd expect from your production systems.

Python 3.12+FlaskNumPyTriangular DistributionsDependency GraphsCloudWatch Monitoring

Stop Guessing. Start Forecasting.

Join project managers, engineering leads, and consultants who use probability-based planning to deliver more predictable outcomes.

Select your project task estimates CSV file
We'll send your simulation results to this email
Optional: Personalize your simulation report
Planned start date for your project
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✓ Professional PDF reports
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