Cap Table Sim
Dilution math for every round.
Model every priced round, SAFE, option grant, and waterfall in advance. Walk into your term sheet conversation knowing the answer cold.
You shouldn't need a finance team to answer this
The everyday questions this module makes simple.
Dilution is a black box
You sign the round and only work out what it cost your stake afterwards.
SAFEs stack in confusing ways
Three SAFEs and an option pool, and nobody's sure who owns what post-money.
The 'standard' term costs you
You accept a pool top-up without seeing the bite it takes out of founders.

Model the round before you sign
Add a round and watch ownership dilute, the option pool shift, and the exit waterfall redraw, see who ends up with what.
Illustrative, capabilities and typical targets, not guaranteed outcomes.

The morning you sign
Dilution math for every round.
The term sheet looks fair until you see what it does to your ownership three rounds out. Cap Table Sim maps every SAFE, priced round, and pool change in advance, so you walk into the conversation knowing exactly what 'standard' costs you.
- Import from Carta, Pulley, or a spreadsheet
- Stack SAFEs, convertibles, and priced rounds
- See the waterfall at any exit price
Decisions you can make this week
Practical calls this module helps you get right, no finance background needed.
The capabilities that earn the work.
Round modeling
Stack SAFEs, convertibles, and priced rounds with full pre/post math.
Waterfall analysis
See exactly who gets what at every exit price.
Option pool sizing
Right-size pools without painful re-shuffles round to round.
Founder dilution map
Track your stake from today to exit across every plausible path.
From signal to decision.
- 1
Import the table
Pull from Carta, Pulley, or upload your spreadsheet.
- 2
Stack the rounds
Sequence your next raises with valuation, amount, and pool targets.
- 3
Run the waterfall
Test exit prices from $50M to $1B and see the splits.
- 4
Negotiate informed
Walk into the term sheet with the diluted picture already mapped.
Questions founders ask
Does this replace legal or tax advice?+
No. Cap Table Sim helps you understand the math so you can ask better questions, it isn't legal, tax, or financial advice. Always confirm terms with your counsel.
Can I bring in my existing cap table?+
Yes. Import from Carta or Pulley, or upload a spreadsheet to start.
SAFE or priced round, can I compare both?+
Yes. Model each path side by side and see how your ownership lands under either.
Adjacent capabilities.
Make this the last spreadsheet you build
Build your plan, connect your data, and see this working on your own numbers, no finance team required.
From idea to investor-ready · built for founders, not finance teams