Free tools

Calculators and writers for founders. They run in your browser: no sign-up, and nothing you type leaves your device.

Launch

Launch post writerTurn your product's name, one-liner and link into launch post drafts for X, LinkedIn and the Launchef feed. Fill in the facts, copy, post.

Finance

MRR calculatorWork out monthly recurring revenue from paying customers and price, convert it to ARR, and project the next 12 months from new customers and churn.
Runway calculatorFind your monthly net burn and how many months of cash you have left, with and without revenue growth, and whether you're default alive.
LTV:CAC calculatorWork out customer acquisition cost, lifetime value, the LTV:CAC ratio and how many months it takes to earn back what a customer cost.
SaaS valuationEstimate a SaaS valuation as ARR times a revenue multiple you choose, with a low to high range and a Rule of 40 check on growth and margin.

Pricing

Payment fee calculatorSee what card fees take from each charge and each month, and what you keep. Set the percentage and fixed fee to match your payment provider.