Free Finance Tools
25+ premium, ad-free calculators for modern e-commerce.
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Free Finance Tools - 25+ premium, ad-free calculators for modern e-commerce.

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Say goodbye to clunky, ad-filled calculators from 2005. Free Finance Tools is a completely free, beautifully designed hub of 25+ calculators built specifically for modern e-commerce sellers, freelancers, and small businesses. Calculate your true Etsy, Amazon FBA, Shopify, and Stripe profits instantly. Save calculations directly to your local dashboard, and get contextual help from Penny—our built-in open-source AI assistant. No ads, no paywalls, just clean math.

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👋 Meet Penny: A built-in AI penguin assistant powered by an open-source model to answer your finance and tool questions in real-time. 🏪 25+ Specific Tools: Exact fee algorithms for Etsy, Amazon, Shopify, Stripe, PayPal, and eBay. 💾 Local Dashboard: Automatically saves your history to your browser so you never lose a calculation. ⚡ Lightning Fast: Built on modern architecture (Astro) with instant view-transitions and zero bloat. 🎨 Premium UI: Glassmorphism, smooth animations, and dark mode support.