Next.js SaaS Starter Kit – Supabase Auth, Stripe Billing, API Keys
Preview and demo
Status: unchecked. Availability checks are not a security guarantee.
Description
Production-ready Next.js SaaS Starter Kit for developers who want to launch faster without rebuilding core SaaS infrastructure.
Launchpad is a complete SaaS foundation built with Next.js 15.5.24, TypeScript, Tailwind CSS 4, Supabase, PostgreSQL, Stripe Billing, and Zod.
Key Features
Next.js 15.5.24 App Router + TypeScript
Tailwind CSS 4
Supabase Authentication: Email/Password + Magic Links
Protected user dashboard and accounts
PostgreSQL + Row Level Security (RLS)
Stripe recurring subscriptions, Checkout & Customer Portal
Pro & Team plans
Secure Stripe webhook verification, idempotency & duplicate-event protection
Secure API key generation, SHA-256 hashing, revocation & last-used tracking
Constant-time API-key comparison
Database-backed API rate limiting
Protected API endpoint example
Zod validation & server-side secret protection
Responsive SaaS landing page, pricing, FAQ & production-ready UI states
Supabase database migrations
Production deployment documentation
Built for SaaS Development
Skip rebuilding authentication, subscriptions, billing, API keys, webhooks, database security, and account infrastructure. Start with a structured foundation and focus on building your actual product.
Requirements
Node.js 20+
Supabase project
Stripe account with recurring Products/Prices
What's Included
Complete source code, PostgreSQL/Supabase migrations, .env.example, configuration files, documentation, and a Commercial Single-Project License.
No real API or third-party credentials are included. Connect your own Supabase and Stripe accounts.
License
Use and modify the starter for one independently branded commercial SaaS project. Reselling, sublicensing, or redistributing the starter source itself is prohibited.
Features
Requirements
- Node.js 20 or newer
- npm 10 or newer
- Supabase project with Authentication enabled
- Stripe account with recurring Products and Prices
- Basic knowledge of Next.js and TypeScript
- Basic knowledge of Supabase and Stripe
Automated Security Scan Passed
- Product version:
- 1.0.0
- Archive verified:
- Yes
- Scan date:
- 8 October 2026
- Malware scan:
- Passed
- Secret detection:
- Passed
- Dependency scan:
- Passed with 2 non-blocking findings
- Static analysis:
- Passed
A passed automated scan does not guarantee that the software is free from every vulnerability or security risk. The result applies only to this version. View scan methodology
Technical requirements
- Next.js
- Database: PostgreSQL
- Shared hosting may not be sufficient
What is included
- Starter kit package with full downloadable files
- Product listing and product page guidance
- Readable source code for customization
- 12 listed features
Who is this product for
- Buyers who need a starter kit rather than a custom build from scratch
- Teams shopping within Next.js
- Use cases aligned with Next.js SaaS Starter Kit Next.js SaaS Boilerplate Next.js Starter Kit SaaS Boilerplate SaaS Starter Kit Next.js Supabase Next.js Stripe Supabase SaaS Starter Stripe SaaS Starter Next.js Supabase Stripe Next.js SaaS Template SaaS Source Code Next.js Source Code SaaS Starter Template Production Ready SaaS
License and usage
- Extended license for one end product where end users can be charged
- Verify the exact usage rights on the selected license before deployment or client handoff
- Keep the purchase record and license certificate for future verification
Updates and support
- Support terms are provided by the seller and should be reviewed before purchase
- Update expectations should be confirmed from the listing before purchase
Technical details
- Last updated
- Oct 8, 2026
- Framework
- Next.js 15.5.24
- Databases
- PostgreSQL
- Shared hosting
- No
- Docker
- No
- Composer required
- No
- Node.js required
- No
- Documentation
- No
- Source encrypted
- No
- Source obfuscated
- No
- License options
- Extended
Marketplace review
Content review processReviewed 8. 10. 2026. The current version was reviewed.
The marketplace reviewed the listing content, package structure and required documentation.
Automated checks looked for suspicious files and common malware indicators.
A reviewer manually inspected selected source files and implementation details.
The product received an additional security-focused review beyond the baseline listing checks.
This is not a full penetration test or a guarantee that the product is vulnerability-free.
License comparison
A license is tied to one end product, not strictly to one domain. Development, staging, and the final production domain may belong to the same licensed deployment.
| Use | Regular License | Extended License |
|---|---|---|
| Source code modification | ||
| Own project use | ||
| One client project | ||
| One production deployment | ||
| Development and staging | ||
| Paid SaaS or paid user access | ||
| Multiple unrelated client projects | ||
| Redistribute source code | ||
| Resell source code |
License FAQ
Can I modify the source code?
Yes, under both licenses.
Can I use the script for a client?
Yes, for one client end product.
Can I install it on a staging domain?
Yes. Development and staging may belong to the licensed deployment.
Do I need another license for another client?
Yes, each unrelated client end product needs its own license.
Can I use it for a paid SaaS?
Yes, with an Extended License.
Can I resell the source code?
No. Standalone redistribution or resale is prohibited.
Is a license limited strictly to one domain?
No. It is tied to one end product, which may use development, staging, and production domains.
For one end product — can charge end users
Item Details
- Last Update
- October 8, 2026
- Published
- October 8, 2026
- Version
- 1.0
- Category
- Next.js
- Product Type
- Starter kit
- Sale Type
- Source Code License
- Sales
- 0
- Reviews
- No reviews
Buying guides
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License Info
Regular License — Use in one end product which end users are not charged for.
Extended License — Use in one end product which end users can be charged for.
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