Cap Table & Equity Simulator: Visualize Your Dilution Before You Sign

Stop guessing how much of your company you actually own. Model multiple funding rounds, option pools, and founder dilution to keep control of your cap table and avoid nasty surprises down the road.

Try the Live Interactive Demo

Before you dive into the features, test the power of the Cap Table Simulator yourself. Access our live, fully functional demo, input your funding rounds, and see exactly how fast you can visualize your equity dilution.

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Your Cap Table is a Ticking Time Bomb of Hidden Dilution

Raising capital is exciting, but the math behind it is a trap for the unwary. You agree to a “safe” sounding $5M investment at a $20M pre-money, only to realize later that the VC demanded a 20% option pool be created *pre-money*, instantly dropping your founder ownership by twice what you expected.

Building a cap table in Excel usually means wrestling with percentage calculations that refuse to add up to exactly 100%. If you try to model future Series B or C rounds, or factor in employee option grants over time, the spreadsheet turns into a tangled mess of circular references and broken formulas.

It’s time to take control of your fundraising with a dynamic, visual equity simulator that shows you the brutal truth about dilution before you sign the term sheet.

What Makes This the Ultimate Cap Table Management Tool?

Built for founders, investors, and startup lawyers who need absolute mathematical precision and visual clarity.

• Multi-Round Simulation: Easily model your entire fundraising journey from Seed to Series C. Add new investors, tranches, and convertible notes to see the long-term impact on your equity.
• Pre-Money vs. Post-Money Option Pool Shuffling: This is where founders lose millions. Toggle between standard (post-money) and aggressive (pre-money) option pool inclusion to instantly see how much of the round is actually funding the company versus diluting the founders.
• Visual Pie Chart Waterfall: Stop staring at rows of percentages. Watch a dynamic pie chart instantly update as you add new rounds, clearly showing who owns what, slice by slice.
• Employee Option Granting: Model your ESOP. Input future employee hires and option grants to see how the pool depletes over time and how it impacts the founders’ bottom line.
• One-Click Term Sheet Export: Need to share the projected cap table with your co-founders or lawyers? Export a perfectly formatted PDF summary of the ownership structure and dilution waterfall in one click.

How It Works

1. Set the Foundation: Input your founder shares, initial option pool, and the price per share.
2. Model the Rounds: Enter the investment amount, pre-money valuation, and option pool requirements for your upcoming funding rounds.
3. Visualize Your Stake: View the automated pie chart and dilution table to ensure you are happy with your post-money ownership.

Who Is This Tool For?

• Startup Founders: Don’t walk into a VC meeting blind. Run the numbers yourself to negotiate term sheet provisions intelligently and protect your ownership.
• Angel Investors & Syndicate Leads: Quickly calculate your exact ownership percentage across multiple rounds of follow-on funding to track your portfolio exposure.
• Startup Lawyers & Paralegals: Generate clean, error-free cap table scenarios for clients in seconds without billing hours for Excel troubleshooting.
• VC Associates & Analysts: Quickly audit a founder’s cap table to ensure the option pool shuffle and pre/post money math checks out before presenting to the partners.

Enterprise-Grade Features, Zero Friction

• 🌙 Dark Mode Included: Perfect for late-night term sheet negotiations.
• 💾 100% Local & Private (IndexedDB): Cap tables are highly confidential. Your equity splits, valuations, and investor data never leave your browser. No cloud servers, no data leaks.
• %. Smart Formatting: Percentages are locked to two decimal places and automatically sum to exactly 100.00% to catch any math errors instantly.
• ⚡ Instant Calculations: Change the pre-money valuation by $1M and watch the entire pie chart, founder dilution, and price-per-share update in milliseconds.

Frequently Asked Questions

What is “Option Pool Shuffling” and why does it matter?

When a VC invests, they often require an unallocated option pool (e.g., 10%) to be created *before* their money goes in (Pre-Money). This means the founders bear 100% of the dilution for that pool. If negotiated to Post-Money, the investor shares in that dilution. This tool lets you toggle between the two to see the massive difference in founder ownership.

Does this handle Convertible Notes or SAFEs?

Yes. For pre-priced rounds (like SAFEs or notes converting), you can manually input them as a “tranche” in the round by estimating the conversion price and share count, allowing you to see their impact on the cap table.

Can I model a founder vesting schedule?

This tool focuses on the capitalization table structure (who owns what based on investment). For complex founder vesting cliffs and acceleration clauses, you would input the *resulting* share counts into the simulator.

Is my cap table data secure?

Absolutely. This is a standalone HTML application. It does not send, store, or transmit your highly sensitive valuations or equity splits to any external server. Your data stays entirely on your local machine.