Tools for Indie Builders
Free calculators and launch tools for SaaS founders. Check your launch readiness, audit SEO, detect tech stacks, and model your key metrics — all in the browser.
Launch & SEO Tools
Audit your landing page before launch — social sharing, trust signals, clarity, and SEO foundations. Get a score and fix list.
🔍Scan any URL for on-page SEO issues — meta tags, headings, structured data, social cards, and technical SEO. Score with fixes.
⚙️Detect frameworks, hosting, analytics, payments, and auth from any public URL. No account needed.
🖼️Check if a site can be embedded in an iframe. Detects X-Frame-Options and CSP frame-ancestors blockers with fixes.
SaaS Calculators
Calculate Monthly Recurring Revenue, ARR, net new MRR, and month-over-month growth rate.
📉Calculate monthly and annual churn rate, MRR churn, and implied average customer lifetime.
💸Calculate blended Customer Acquisition Cost, LTV:CAC ratio, and payback period in months.
💰Calculate Customer Lifetime Value, gross-margin-adjusted LTV, LTV:CAC ratio, and payback period.
⏱️Calculate startup runway in months based on cash balance, monthly revenue, and burn rate.
📊Calculate your SaaS Rule of 40 score — the sum of revenue growth rate and profit margin.
tools.cafe gives your indie product a permanent indexed listing and a backlink from a DR67+ domain. Free to submit — takes 2 minutes.
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