MantleKit
NextJS Boilerplate & Starter Kit

Ship your SaaS
in days, not months.

Production-ready NextJS boilerplate with auth, payments, blog, ecommerce, and 5 stunning themes. One command to launch.

5+
Themes & Growing
3
Payment Providers
9+
Drop-in Features
<5min
To First Deploy
Features

Everything wired up.
Nothing left to configure.

Auth, payments, blog, ecommerce, email — all pre-built and production-ready. Just add your business logic.

Authentication

Supabase Auth with Google OAuth, magic links, and email/password. Protected routes out of the box.

Payments

Stripe, Lemon Squeezy, or Polar. Subscriptions, one-time payments, and hosted checkout.

MDX Blog

Two-tier category system, SEO metadata, JSON-LD, RSS feeds. Write in Markdown, deploy as static.

Ecommerce

Product pages, cart, checkout flow. Supabase-backed inventory with variant support.

Chat Support

Crisp widget integration. Drop in your website ID and you have live chat. Zero config.

Help & FAQ

MDX-driven knowledge base and FAQ pages. Accordion components, search, static generation.

Transactional Email

React Email templates for welcome, password reset, purchase confirmation. Resend or Mailgun.

Landing Pages

Hero variants, feature grids, testimonials, pricing tables. Compose sections like building blocks.

5+ Themes

Minimal, Bold, Corporate, Creative, SaaS — plus ongoing new themes. Each visually distinct. CSS variable-driven, zero duplication.

One Command

From zero to deployed
in under 5 minutes.

terminal
$ npx create-mantlekit --key MK-XXXX
✦ MantleKit Setup
✓ Pro licence verified
✓ Theme: Bold
✓ Payments: Stripe
✓ Email: Resend
✓ Blog, Ecommerce, Chat, FAQ
✓ Done! cd my-app && npm run dev
Components

Beautiful by default.

Every component adapts to your theme. No overrides needed.

Buttons

Lightning Fast
Static generation, edge runtime, and Turbopack. Your site loads before they blink.
Theme-Aware
Every component responds to your theme. Switch themes, and everything just works.
Developer First
TypeScript, clean architecture, documented APIs. Built by developers, for developers.
Pricing

One purchase.
Lifetime access.

Starter
$79
Perfect for your first SaaS
  • 1 theme
  • Supabase Auth
  • 1 payment provider
  • MDX Blog with SEO
  • Landing page components
  • Transactional email
  • Personal licence
Most Popular
Pro
$149
Everything you need to ship
  • All themes + ongoing new themes
  • Supabase Auth
  • All 3 payment providers
  • MDX Blog with SEO
  • Ecommerce
  • Chat support widget
  • Help & FAQ pages
  • Both email providers
  • Personal licence
Agency
$249
Build for your clients
  • Everything in Pro
  • Commercial licence
  • Unlimited client projects
  • Priority updates

Stop building boilerplate.
Start building your product.

Every hour you spend on auth, payments, and email is an hour you're not spending on what makes your product unique.