In simple English
This tool helps startup founders track who owns shares in their company. You can see ownership percentages, option pools, and convertible notes in one place. It lets you import data from other equity platforms so you are not locked in. You can also run simulations to see how future fundraising rounds change ownership. The project is free to use if you host it yourself, but setup requires technical knowledge.
What it is
Capy is an open-source cap table manager built with TypeScript, React, and Convex. It provides a self-hostable alternative to commercial equity platforms for early-stage companies.
What it is good for
Founders who want to keep their company ownership records on their own infrastructure and avoid recurring software fees from proprietary cap table services.
- Imports existing equity data from Pulley spreadsheets easily.
- Includes fundraising simulation tools to model priced rounds and SAFEs.
- Permits local data export to Excel and CSV formats at any time.
- Requires technical setup involving Bun, Node.js, and a Convex cloud project.
- Does not currently generate legal documents or handle 409A valuations.
- Email verification and password recovery features are still missing in the current version.
Proprietary cap table services like Pulley or Carta
Convex backend service
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git clone https://github.com/zain/capy.git cd capy bun install --frozen-lockfile lp apps/web/.env.example apps/web/.env.local bun run dev:setup