Free tools for founders

The numbers before the conversation.

Calculators for the decisions founders make once and live with for years. No signup, nothing stored, nothing to download.

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One tool, done properly

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01Live

SAFE dilution calculator

Enter the SAFEs you’ve signed and the round you’re raising. See what you actually own on the other side — and where every point of it went.

  • Post-money and pre-money SAFEs, modelled correctly
  • Caps and discounts, with whichever one binds shown
  • The option pool top-up that comes out of your side
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A runway and burn planner is next.