Launch Your SaaS in Days, Not Months
The complete foundation for building modern SaaS applications. Production-ready authentication, subscriptions, admin tools, and more.
Authentication That Goes Beyond Basic
Not just login and signup. Get enterprise-grade authentication with password policies, account lockout, magic links, user invites, and admin impersonation. Everything you need for serious applications.
- Password strength validation with reuse prevention
- Account lockout after 5 failed attempts with 30-minute duration
- Magic link authentication with 15-minute expiry
- User invite system with role assignment and 72-hour expiry
- Admin impersonation with full audit trail and session tracking
- Comprehensive audit logs for all user actions
import type { UserRole } from "@/types/auth";
export const authConfig = {
// Password policies
password: {
minLength: 12,
requireUppercase: true,
requireLowercase: true,
requireNumbers: true,
requireSpecialChars: true,
minStrengthScore: 3, // zxcvbn score (0-4)
preventCommonPasswords: true,
preventPasswordReuse: 5, // Number of previous passwords to check
requireConfirmation: false, // Require password confirmation field in forms
},
// Account lockout policies
lockout: {
enabled: true,
maxAttempts: 5,
durationMinutes: 30,
},
};
Full Subscription & Payment System
Complete Stripe integration ready to accept payments on day one. Feature gates, usage tracking, proration, customer portal - everything you need for subscription revenue.
- Flexible plan system with monthly/yearly billing and trial support
- 3 feature gate types: Boolean, Limit, and Quota tracking
- Automatic proration on upgrades, end-of-period on downgrades
- Webhook handling with automatic deduplication
- Multi-currency support (USD, EUR, GBP)
- Customer portal for self-service subscription management
Admin Dashboard for Everything
Manage users, plans, features, and subscriptions from a beautiful admin panel. Search, filter, impersonate, and control every aspect of your SaaS from one place.
- User management with search, filter, ban/unban capabilities
- Support mode (impersonation) for helping customers
- Plan CRUD with automatic Stripe synchronization
- Feature management with flexible gate modes
- Subscription analytics with MRR/ARR tracking
- Global settings for subscription configuration
Multi-Language Without the Complexity
Built-in internationalization with English, Portuguese, and Spanish. SEO-friendly URLs, cookie-based language persistence, and easy language switching.
- Cookie-based language detection (no URL prefixes needed)
- 3 languages out of the box: English, Portuguese, Spanish
- SEO-friendly with language alternates in metadata
- Easy to add more languages (just copy translation files)
- Persists across sessions automatically
- Clean URLs without /en, /es prefixes
Theme System Built on Science
OKLCH color space for perceptual uniformity. Multiple theme variants including Night Vision mode for reduced eye strain. Centralized configuration makes customization easy.
- OKLCH color format for better color consistency
- 2 theme variants: Default and Night Vision (warm tones)
- Dual control: Mode (light/dark) + Variant selection
- Night Vision reduces blue light and eye strain for night use
- 13 semantic colors + 5 status colors (all customizable)
- Persists to localStorage, applied automatically
Dev Builder: AI-Powered Feature Generator
Unique to DarkSaaS. Interactive wizard that generates detailed AI prompts for building new features. Select technologies, choose templates, get instant prompts.
- 5-step wizard for generating perfect AI prompts
- Technology selection catalog (frameworks, databases, tools)
- Preset templates for common feature types
- Copies formatted prompt directly to clipboard
- Speeds up development with AI assistants like Claude
- Built-in best practices and patterns
Everything You Need, Nothing You Don't
DarkSaaS goes beyond basic boilerplates. Get enterprise features that save months of development.
Database-Level Security
Row Level Security (RLS) policies on every table. CSRF and XSS protection. Encrypted passwords. Your users are protected by default.
Server Components First
Built with Next.js 16 App Router. Server components for performance, client components only when needed. Optimized from day one.
Complete Database Setup
6 database migrations ready to go. User management, subscriptions, audit logs, and more. PostgreSQL 17 with Supabase.
Type-Safe Throughout
Strict TypeScript mode. 1,118 lines of type definitions. Auto-generated types from database. No "any" types allowed.
Production Ready
Not a demo. Real RLS policies, error handling, loading states, accessibility, mobile-first design. Ship to production today.
SEO Optimized
Dynamic sitemap, structured data helpers, per-page metadata, OpenGraph and Twitter cards. Built for discoverability.
Analytics Ready
Subscription analytics with MRR/ARR tracking. User activity audit logs. Everything you need to understand your business.
Webhook Handling
Stripe webhook integration with event deduplication. Automatically syncs subscription status, invoices, and customer data.
75+ Components
Shadcn UI base + 50+ custom components. Authentication, profile, subscription, admin, marketing - all responsive and accessible.
Built With Modern Technologies
The best tools for building production-ready SaaS applications
Trusted by Builders Worldwide
See what founders and developers are saying
“DarkSaaS saved me 3 months of development. The subscription system alone is worth it. I went from idea to paying customers in 2 weeks.”
“The authentication system is enterprise-grade. Password policies, impersonation, audit logs - features that would take months to build properly.”
“Finally, a boilerplate that actually works in production. The admin dashboard is powerful and the code quality is exceptional.”
“The Dev Builder tool is genius. Generating AI prompts for new features speeds up development significantly.”
“We use DarkSaaS for all our client projects. The internationalization and theming make it perfect for global applications.”
“Type-safe throughout, proper RLS policies, comprehensive docs. This is what professional SaaS development looks like.”
Built with DarkSaaS
Car Dealership SaaSSold for $4.5M CAD
A DarkSaaS founder built, launched, and scaled his automotive software—then exited to a major industry player
Your Success Story Starts Here
Built with DarkSaaS. Launched fast. Scaled effectively. Acquired successfully. You could be next.
What's Included
Everything you need to launch and scale your SaaS
Authentication
- Email/password + Magic links
- Password strength validation
- Account lockout system
- User invites with roles
- Email verification
- Password reset flow
Subscriptions
- Complete Stripe integration
- Feature gates (3 types)
- Customer portal
- Webhook handling
- Multi-currency support
- Proration logic
Admin Dashboard
- User management
- Plan CRUD operations
- Feature management
- Subscription analytics
- Admin impersonation
- Global settings
User Experience
- Profile management
- Avatar upload with cropping
- Billing settings
- Subscription details
- Email preferences
- Account deletion
Developer Tools
- Dev Builder wizard
- Type generation from DB
- Local Supabase stack
- One-command reset
- Hot reload
- Comprehensive docs
SEO & Marketing
- Dynamic sitemap
- Structured data helpers
- OpenGraph support
- Twitter cards
- Landing page components
- Email templates
Start Building Your SaaS Today
Stop wasting time on boilerplate. Get production-ready authentication, subscriptions, and admin tools. Launch in days, not months.
No credit card required • Free to start • Full ownership