Free Quant Finance Tools
Interactive tools to help you drill mental math for trading OAs, explore options pricing, practise interview questions, understand quant salaries, and visualise stochastic processes.
Python Playground
Free in-browser Python editor with medium–hard quant challenges — rolling Sharpe, binomial trees, pairs signals. Same Monaco editor as Quantt, with hints and checks.
Mental Math Trainer
Drill arithmetic at interview pace. Untimed practice or 60-second sprints across addition, multiplication, division and percentages — the skills trading OAs test.
80 in 8 Challenge
Free Optiver-style simulator: 80 questions in 8 minutes with +1/−1 scoring. Built for trading firm online assessment prep.
Probability Visualizer
Explore Normal, Binomial and Poisson distributions with live PDF and CDF charts. Tune parameters and evaluate probabilities.
Black Scholes Calculator
Free Black-Scholes calculator for European call and put prices, d1, d2 and Greeks. Number inputs, instant results - built for the keyword people actually search.
Options Pricing Playground
Interactive Black-Scholes explorer with live sliders and payoff charts. See how prices and Greeks move as you change spot, strike, vol, time and rate.
Interview Question Generator
Practice with 30+ real quant interview questions across probability, brain teasers, mental math, market making, statistics, and coding. Filter by category and difficulty.
Quant Salary Calculator
Explore estimated compensation ranges for quant roles across different firm tiers, experience levels, and locations. Base salary, bonus, and total comp breakdowns.
Monte Carlo Simulator
Visualise how prices evolve under Geometric Brownian Motion, mean reversion, and jump-diffusion. Adjust parameters and watch hundreds of paths generate live.
More free resources
Cheatsheets and quick diagnostic quizzes — no signup required.
Mathematics for Quant Finance
Free PDF covering the core maths every quant needs.
CheatsheetTech & Programming for Quants
Free PDF on Python, C++, systems and infrastructure for quant work.
CheatsheetFinance for Quants
Free PDF of the finance concepts that show up in interviews and on desks.
QuizMathematics readiness quiz
Quick diagnostic across the maths topics quants are expected to know.
QuizData science readiness quiz
Test your statistics, ML and data-engineering fundamentals.
QuizSoftware engineering readiness quiz
Check your coding, systems and design knowledge against quant expectations.
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