FundSim is a free, browser-based deal simulator for people learning private equity, venture capital, and investment banking.

What's on it:

LBO simulator with a real debt schedule and live returns VC cap table with SAFE notes and liquidation preferences IB module with DCF and accretion/dilution Deal Challenge: weekly timed scenario, same deal for everyone that week, 10 minutes, 3-strike elimination, global leaderboard AI negotiation roleplay against a CFO or founder character

Built because prep courses are $300+ and they're passive video lessons. The skill being tested in interviews is speed and intuition, not whether you watched the right video. FundSim is the reps, free, for everyone.

Stack: React, TypeScript, Vite, Vercel, Supabase, and one Anthropic-backed serverless endpoint for the AI negotiation.

Permanently free.