Founder Tools

Calculate. Plan. Decide.

19 free founder tools. Deterministic logic — no AI, no tracking inside the tool, no signup. Copy or download your output.

Calculators

How many months of runway you have at current burn — with action triggers at 12 / 6 / 3 months.

Gross burn and net burn over a period — and the runway that implies.

Project 12 months of MRR and ARR from current revenue, gross-new MRR, churn, and expansion. The single most-used founder model.

Price minus variable cost per unit = gross margin. Where the business actually makes money before fixed costs.

How many units (or how much revenue) you need to cover fixed costs.

Compute LTV, CAC payback, and LTV:CAC ratio with healthy/broken interpretation.

Months to recover acquisition cost from gross profit per customer, with healthy/warning bands.

How many users do you need per variant for the test to actually conclude? Standard difference-in-proportions math, no AI.

Plug in month-1/3/6/12 retention, get plateau, lifetime, and implied LTV — plus a PMF verdict.

Model your employee option tax — US ISO/NSO and UK EMI/Unapproved — across grant, exercise, and sale.

How much founders are diluted at a given raise — including the option-pool shuffle.

Score your business idea on 8 dimensions and get a kill / test / build verdict with next steps.

Set weekly outreach activity and see the pipeline that produces — kill the guesswork.

Capture wins, metrics, blockers, and commitments — generate a weekly operating memo.

Tell us your stage, business type, and main constraint — get a roadmap with guides, tools, and a 7-day plan.

10-slide pre-seed deck checklist with red-flag warnings and a downloadable summary.

Fill the form, get a clean monthly investor update in markdown ready to send.

Self-audit 16 founder-stage legal essentials — incorporation, vesting, IP, contracts, IP, compliance. Copy or download your status.

16-point GDPR/UK-GDPR self-audit — lawful basis, RoPA, DPAs, subprocessors, DSARs, breach process. Copy or download your status.

All tools are free. They run in your browser; no inputs leave your device unless you copy or download the output.