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ForexFin

forexfin.tech

Free forex calculators and a live price-alerts engine for retail traders. Calculators stay signup-free and ad-free; alerts use magic-link auth, no password.

Visit forexfin.tech → ← Portfolio

What it is

Most retail forex calculators are scattered across broker sites, gated behind signups, or padded with ads and upsells. ForexFin pulls the math retail traders actually use into one ad-free toolkit and runs it in the browser — calculator inputs stay on the device.

The shipping product is eight calculators (position sizing, pip value, margin, swap, risk:reward, Kelly fraction, spread cost, and a Trade Plan Builder that composes them), a Currency Strength Meter and Pair Correlation Matrix built from ECB reference rates, a market-hours visualizer, a Learn hub of concept pages, and a live price-alerts engine with magic-link signup.

What's built

  • Eight retail forex calculators — position size, pip value, margin, swap, risk:reward, Kelly fraction, spread cost, and a Trade Plan Builder that composes them
  • Currency Strength Meter (8-currency basket) and Pair Correlation Matrix — cross-market views from daily ECB reference rates
  • Market-hours visualizer for the major sessions, DST- and weekend-aware
  • Learn hub — concept pages for pip, leverage, and margin call, each with a worked example and links back to the relevant calculator
  • Price-alerts engine — live; magic-link signup, set a level, get notified when it triggers, manage from /alerts/ dashboard
  • Calculators run fully client-side; signup-free, ad-free, no third-party tracking on calculator pages
  • Self-hosted on OVH (PM2 + nginx + Let's Encrypt)

Origin

ForexFin started as a B2B fintech demo on top of a webhook relay — a TradingView-compatible alert routing proof-of-flow with public receipts. That demo never had a use case sharper than "infrastructure looking for a customer." The pivot to retail tools narrowed the audience and clarified the product: traders who want the math right before clicking buy, without the broker-site friction.

Who it's for

  • Retail forex traders sizing positions and checking risk before entry
  • Traders evaluating broker spread/swap costs against their setup
  • Anyone running mechanical risk rules (fixed-fractional, Kelly) who wants a fast calculator
  • Traders who'd rather bookmark a tool than log into one
← Portfolio