Useful first screen
The visitor gets the solver immediately, with examples and result states that reduce friction.
Business Utilities
Mortgage Payment Calculator Starter Kit
A complete static HTML, CSS, and JavaScript starter kit for a mortgage payment lead magnet. Visitors enter purchase price, down payment, interest rate, amortization, payment frequency, property costs, closing costs, optional extra principal, income/debt details, and readiness answers, then get monthly payment, cash-to-close, payoff timing, interest saved, payment ratios, and next steps.
Screenshots
Preview the finished starter kit
Public previews are shown as screenshots so the paid static files are not exposed as a downloadable live demo.
Why it exists
A practical lead magnet for mortgage payment conversations
Launch an embeddable calculator that helps visitors estimate monthly payment, ownership costs, cash to close, payoff timing, payment ratios, and readiness gaps before they compare properties or talk to a lender.
Static and portable
The generated site can run on ordinary static hosting, with no database or server application required.
Launch-ready trust pages
Privacy, terms, contact, sitemap, robots, manifest, and service worker files are already included.
Features
What the package includes
Site features
- Interactive mortgage payment calculator with deterministic local estimates.
- Inputs for purchase price, down payment, financed fees, interest rate, amortization, payment frequency, taxes, insurance, HOA/condo fees, mortgage insurance, closing costs, extra principal, income, and debts.
- Outputs for loan amount, principal and interest, monthly equivalent, cash to close, payoff estimate, total interest, interest saved, and optional payment-ratio snapshot.
- Readiness categories for budget clarity, loan assumptions, property costs, cash to close, and next steps.
- Tool-only embed.html output that removes the homepage hero, FAQ, footer, and supporting content, with an optional link back to the full site.
- Optional public homepage panel with embed.html link, iframe code, and copy buttons.
- Optional result form that can post estimate details to a buyer's form provider.
- Copy and download actions for a local text mortgage brief.
- Installable app files, privacy, terms, contact, robots, sitemap, third-party notices, and customizer metadata.
Buyer files
- Editable template source with searchable placeholder tokens.
- Metadata-driven customizer fields for brand, domain, SEO text, default theme, colors, lead form settings, embed output, embed backlink, public embed code, optional snippets, ad spots, and app settings.
- Customizer-ready ZIP structure for form-based setup.
- Full-page homepage plus optional tool-only embed page.
- Small HTML start file, versioned online setup guide, MIT license, and third-party notices.
Launch workflow
Customize, review, upload
Download the starter kit ZIP from Gumroad or your purchase receipt.
Use the browser customizer to fill in your site details and choose the default theme, then choose whether to include embed.html, its full-site link, and a public embed-code panel.
Connect a form endpoint if you want completed estimates to create leads.
Review the generated homepage, embed page, privacy, terms, contact, sitemap, and manifest files.
Upload the generated static files to your host and test the live site or iframe embed.
Editable details
Built to be renamed and recolored
The placeholder metadata powers the browser customizer, so the package can be customized through a form instead of editing every page by hand.
- Brand name, mark, tagline, domain, contact method, and canonical URL.
- SEO title, meta description, Open Graph title, and Open Graph description.
- Headline, calculator intro, result caveat, and report button text.
- Default theme plus dark and light theme highlight colors with contrast validation.
- Optional lead form action URL, method, consent copy, form labels, and success message.
- Optional tool-only embed page output, optional embed backlink, and optional public embed-code panel.
- Optional analytics, verification, custom CSS, body scripts, and homepage ad placements.
- PWA name, short name, description, icon title, and cache prefix.
Comparison
Where this kit fits
This starter kit
Best for a focused mortgage payment lead magnet, static hosting, optional lead capture, quick customization, and embeddable tool-only output.
Generic mortgage calculator
Useful for basic payment math, but it often lacks customizer metadata, lead capture, embed controls, PWA behavior, legal pages, and launch docs.
Custom development
Best when you need live rates, lender integrations, account systems, CRM routing, MLS/property data, authentication, or a fully custom product roadmap.
FAQ
Mortgage Payment Calculator Starter Kit questions
Is this a finished website or a starter kit?
It is a starter kit. You get working source files, customization metadata, license, third-party notices, and an HTML start file that links to versioned setup docs for the companion website customizer.
What makes it embeddable?
The package includes an optional embed.html output. It removes the full-page hero, FAQ, footer, and supporting sections so the calculator can be used as a focused iframe or embedded landing-page tool. The generated embed page uses the selected default theme and accent colors, and separate customizer toggles can show a small backlink inside embed.html and a public embed-code panel on the full homepage.
Does this provide lender approval or financial advice?
No. It is a planning calculator and starter kit. It does not approve loans, quote rates, verify taxes, verify insurance, check credit, or replace lender, legal, tax, insurance, or financial advice.
Can it collect leads?
Yes. The optional lead form can post the completed estimate details to a buyer's HTTPS form provider, CRM, or static-form service. The buyer must test the live hosted form and update privacy copy for the services they use.
Can I change the calculator copy and colors?
Yes. The metadata includes editable fields for brand, domain, SEO copy, calculator copy, default theme, highlight colors, lead form settings, embed output, public embed-code panel, optional snippets, and app settings.
Does the buyer ZIP include the public customizer?
No. The buyer ZIP includes the starter kit source files and metadata. The browser customizer is a separate upload-only companion site at customize.ryanrhode.com.