Free SaaS Tools
Interactive calculators and builders for SaaS founders. No signup, no data stored — just answers.
Read more about these SaaS tools
Every SaaS founder hits the same wall: you have a hunch about pricing, churn, or unit economics — but no fast way to test it without rebuilding a spreadsheet for the third time this month. These tools exist because that is a stupid loop. Each one is a single, focused calculator that answers one question: am I leaving money on the table, does my LTV justify my CAC, how big is my churn really, what does this tier actually need to charge?
None of them require an account, none of them store your numbers on a server, none of them will email you a useless PDF. They run entirely in your browser — type, see the answer, close the tab. That matters more than it sounds: when you are stress-testing a pricing change at 11pm before a launch, the friction of "create an account, verify email, accept cookies" is exactly what kills the experiment. Faster iteration beats prettier dashboards every time.
Most online SaaS calculators come in two flavors: thin lead-magnets that hide the answer behind an email field, or vague ROI tools dressed up as authority. We hate both. The calculators here are built the same way the dashboard is built — assuming you already know what MRR is, you already know your CAC, and you just need a fast, honest answer. They surface the formula (so you can audit it), they accept ranges (because reality has ranges), and they output something you can paste into a Slack channel and defend.
Pair each tool with the article that explains the math behind it. The SaaS pricing calculator sits next to our pricing methodology; the LTV calculator extends our LTV guide for SaaS founders; the cohort retention picker is the visual companion to our cohort analysis deep-dive. The article is the why, the tool is the how — using both is how you stop guessing and start deciding.
If you have Stripe connected and want the full picture instead of a one-shot calculator, NoNoiseMetrics streams your real numbers in 90 seconds: live MRR, real churn, cohort retention, NRR, ARPU — no spreadsheets, no manual CSV exports. Free up to €10K MRR. The tools below are the bench; the dashboard is the workshop.
Every SaaS founder hits the same wall: you have a hunch about pricing, churn, or unit economics — but no fast way to test it without rebuilding a spreadsheet for the third time this month. These tools exist because that is a stupid loop. Each one is a single, focused calculator that answers one question: am I leaving money on the table, does my LTV justify my CAC, how big is my churn really, what does this tier actually need to charge?
None of them require an account, none of them store your numbers on a server, none of them will email you a useless PDF. They run entirely in your browser — type, see the answer, close the tab. That matters more than it sounds: when you are stress-testing a pricing change at 11pm before a launch, the friction of "create an account, verify email, accept cookies" is exactly what kills the experiment. Faster iteration beats prettier dashboards every time.
Most online SaaS calculators come in two flavors: thin lead-magnets that hide the answer behind an email field, or vague ROI tools dressed up as authority. We hate both. The calculators here are built the same way the dashboard is built — assuming you already know what MRR is, you already know your CAC, and you just need a fast, honest answer. They surface the formula (so you can audit it), they accept ranges (because reality has ranges), and they output something you can paste into a Slack channel and defend.
Pair each tool with the article that explains the math behind it. The SaaS pricing calculator sits next to our pricing methodology; the LTV calculator extends our LTV guide for SaaS founders; the cohort retention picker is the visual companion to our cohort analysis deep-dive. The article is the why, the tool is the how — using both is how you stop guessing and start deciding.
If you have Stripe connected and want the full picture instead of a one-shot calculator, NoNoiseMetrics streams your real numbers in 90 seconds: live MRR, real churn, cohort retention, NRR, ARPU — no spreadsheets, no manual CSV exports. Free up to €10K MRR. The tools below are the bench; the dashboard is the workshop.
Calculate optimal SaaS pricing with cost-based, competitor-based, and value-based approaches. Break-even analysis and tiered pricing recommendations.
Calculate Annual Contract Value instantly. ACV vs ARR vs TCV comparison, multi-contract aggregation, and deal-size benchmarks by segment.
Calculate Customer Lifetime Value with 3 formula variants (basic, margin-adjusted, predictive). LTV:CAC ratio, industry benchmarks and improvement tactics.
Calculate customer churn and revenue churn rate for SaaS. Free calculator with annualization, benchmarks by segment, and churn reduction strategies.
Generate a weekly SaaS scorecard in 60 seconds. Pick the right metrics for your stage — validation, growth, or scale — and stop tracking vanity numbers.
Build a 1-screen SaaS dashboard in 5 minutes. Pick your KPI cards, configure alerts, and preview your ideal layout — no code, no clutter, just signal.
Calculate MRR movements with Net New MRR breakdown. New, expansion, contraction, churn, and reactivation MRR — with stage benchmarks.