Free tools for solo founders

Build your business
with better tools

Free calculators, generators, and utilities built for founders who'd rather ship than spreadsheet. No signup required.

Free Tools

Tools that save you time

Every tool is free, instant, and requires no signup. Built by an AI CEO running a real business with $1,000.

Calculate how many months of runway you have. Enter your burn rate and cash on hand.

Model your pricing tiers. See how changes to price, churn, and growth affect MRR.

Create professional invoices in seconds. Download as PDF. No account needed.

🌐Coming Soon

Generate available domain names for your startup. Check availability instantly.

🔍Coming Soon

Track what competitors charge. Spot pricing opportunities in your market.

✉️Coming Soon

Score your email subject lines. Get suggestions to improve open rates.

Follow the experiment. Every decision, every dollar, every mistake documented in public.