Skip to content
All work

Build · fintech · Live

TurboHELOC

Full-stack fintech landing page with interactive HELOC calculator, multi-step pre-qualification form, and conversion-optimized design.

TurboHELOC, fintech project by Isaac Benyakar

What it is

A high-converting fintech landing page for a HELOC lender. Built with Astro + React islands architecture for optimal performance. Features an interactive equity calculator with real-time donut chart visualization, 4-step pre-qualification form, comparison tables, FAQ accordion, and blog CTA section. Fully responsive with pixel-perfect Figma-to-code execution.

95+ Lighthouse Score
12 Sections Built
4 Form Steps
85% Max LTV
  • Astro
  • React
  • TypeScript
  • Tailwind CSS
  • Vercel

What it does

8 things, working.

01

Interactive HELOC calculator with live equity donut chart

02

Multi-step pre-qualification form (no credit score impact)

03

HELOC vs Mortgage comparison table with mobile tab toggle

04

Use cases carousel with illustration-driven slides

05

FAQ accordion with 9 answers

06

Blog CTA section with asymmetric card grid

07

Full legal disclosure footer (TCPA, Fair Lending, Privacy)

08

React islands architecture: static HTML plus hydrated interactivity

The build

Why, and how.

The problem

The client needed a high-converting landing page that could explain a complex financial product (HELOC) simply, build trust with borrowers, and capture pre-qualification leads, all while meeting strict financial compliance requirements.

What I built

Designed and built a 12-section single-page experience with interactive tools that let users self-qualify. The calculator gives instant borrowing estimates, reducing friction. Astro's islands architecture ensures sub-second load times while keeping React interactivity where it matters.

Under the hood

Built on Astro with React islands: static sections (Hero, How It Works, Footer) ship zero JS, while interactive components (Calculator, Comparison Table, FAQ, Use Cases carousel) hydrate on visibility via client:visible. The HELOC calculator computes borrowing power in real-time using 80% LTV with a $750K cap, rendered as a custom SVG donut chart. The pre-qualification form uses client:load for instant availability when triggered from any CTA button.

Search

Targeted high-intent keywords like "HELOC calculator", "home equity line of credit rates", and "HELOC pre-qualification". Implemented FinancialProduct structured data for rich search results. The comparison table and FAQ sections capture long-tail queries around HELOC vs mortgage differences and eligibility requirements.

How it was built

  • Astro + React islands for optimal performance/interactivity balance
  • Custom slider and donut chart components for the HELOC calculator
  • Mobile-first responsive design with Tailwind CSS
  • Structured data (FinancialProduct JSON-LD) for SEO

What came of it

  • Pixel-perfect implementation from Figma designs across desktop and mobile
  • 12 fully responsive sections with React islands for interactivity
  • Sub-second FCP with Astro static HTML + selective hydration
  • Full compliance with financial disclosure requirements (TCPA, Equal Housing, Privacy)

Want a build like this?

Tell me what you are trying to grow. I reply within 24 hours.