Loan Sweet Spot – Mortgage visualizer vibe coded in 3h with Gemini

Show HN: Loan Sweet Spot – Mortgage visualizer vibe coded in 3h with Gemini

Loan Sweet Spot – Mortgage visualizer vibe coded in 3h with Gemini is active in the show hn launch space.

Profile

Hey HN,I built LoanSweetSpot.com to solve a personal frustration: standard mortgage calculators give you a grid of numbers, but I wanted to visualize the "knee" of the curve—the sweet spot where a small extra payment saves a disproportionate amount of interest (and time).The Build Process: This was a pure "vibe coding" experiment. I acted as the product manager/architect, and Gemini acted as the junior dev handling the syntax.Stack: Zero dependencies (except Chart.js via CDN), single index.html file.Hosting: Cloudflare Pages (Free tier).Time: From blank file to production in one sitting (~3-4 hours).Features:Interactive Payoff Curve: The graph is the controller. Drag the blue dot to adjust t

Within the show hn launch space, the company focuses on its core offering rather than a broad product line.

The company is listed at the Show HN launch stage of development.

Website: loansweetspot.com