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Build a SaaS with Subscription Billing
Login, Stripe Checkout, plan limits, customer portal, the four pieces every paid SaaS needs, generated and wired up. Skip the boilerplate, ship the actual product.
Get started for free, no credit card needed.
0
Tiers configurable out of the box
0h
Auth + billing + portal wired
0%
Code ownership
0
Vendor lock-in (real real code)
01 / What you get
SaaS with Subscription Billing, generated.
Click Generate from the box above. Real Next.js code, a real database, real integrations, not a sandbox. Each piece below ships in the first prompt.
01
Auth via Supabase: email/password + Google OAuth, password reset, email verification
02
Stripe Checkout for subscriptions with Free, Pro, and Team tiers
03
Webhook handlers for checkout.completed, subscription.updated, and subscription.deleted
04
Plan-based feature gating enforced server-side, not just hidden in the UI
05
Stripe customer portal so users self-serve cancellations and plan changes
06
Per-user usage tracking so paid features can have monthly quotas
02 / Variants
4 variants you can ship.
01
Subscription SaaS
Free / Pro / Team tiers, monthly + annual, plan-gated features. The 90% case.
02
Usage-based SaaS
Metered billing, monthly cap, overage alerts, per-seat or per-API-call.
03
Marketplace SaaS
Stripe Connect for split payouts, platform fees, provider onboarding.
04
One-time-purchase SaaS
Stripe Checkout for lifetime access, license keys, optional update subscription.
Pixel-perfect control
The AI builds it. Then you shape every pixel.
Content
Wire up real data
Collections and CMS that feed your live pages.
Color
Pick any color
Components
Reuse your own blocks
Save any section and drop it in anywhere.
Images
Drop in photos
Pull in free imagery without leaving the canvas.
Pages
Structure your site
03 / Who it's for
For people who hate $99-per-seat tools.
→Solo founders launching their first paid product
→Indie hackers shipping side projects with monthly subscriptions
→Teams replacing a Stripe-and-glue stack with one cohesive app
→Anyone tired of cloning the same SaaS starter for the third time
Integrations
Works with the tools you already use.
Payments, database, AI, email and analytics, wired up the moment you connect.
04 / Why generate it
Why generate it instead of buying it.
The wiring is what takes the time, not the product. Auth, Stripe webhooks, plan gating, and the customer portal eat a weekend even with a starter template. Generate them in two hours and spend the saved time on the thing users actually pay for.
You own the full codebase. When you outgrow the scaffold (custom pricing experiments, enterprise quotes, usage-based billing), you extend the same code instead of fighting a SaaS-builder platform's limits.
FAQ
Questions about SaaS with Subscription Billing.
Everything you need to know before you generate it. Anything else, our team is one email away.
Click the Stripe integration to OAuth in. Create your products in the Stripe dashboard (Free, Pro, Team), grab the price IDs, and prompt: "Wire up subscription checkout with these three price IDs." The AI scaffolds the checkout route, webhook handlers, and portal redirect.
Plan gating has to live on the backend, not the UI. Every API route that does something paid checks the user's current plan from the profiles table before running. Hiding the button on the frontend is a courtesy; anyone can call the API directly otherwise.
Listen for customer.subscription.updated (cancellation scheduled) and customer.subscription.deleted (period ended). Don't downgrade on the first event, they paid through the period. The Stripe customer portal handles cancellation UX so you don't build it.
Add a "delete my account" button that triggers a cascading delete across profiles, usage, and any user-owned records. Real deletion in Postgres, not soft-delete. Schedule a job to also delete user data N days after subscription cancellation if you want to be aggressive about retention.
Two to three hours from blank to a working flow: signup, upgrade to Pro via Stripe Checkout, hit a usage limit on Free, see the customer portal work. Production-polish (custom emails, analytics, onboarding) is a weekend.
Keep building
More saas apps you can ship.
AI SaaS App
AI features + paid tiers + token tracking. The four pieces every AI SaaS needs, generated in a couple hours instead of a couple weeks.
Multi-Tenant SaaS
Workspaces, members, roles, billing per tenant. Skip the Clerk/Auth0 per-MAU tax for the auth layer alone.
Newsletter Platform
Subscriber list + paid tier + sending. Stop renting Substack at 10% revenue cut or Beehiiv at $39/month + per-subscriber.
Usage-Based SaaS
Stripe metered billing + per-user quotas + real-time usage display. Skip the metering-as-a-service tax (Metronome, Orb, Lago all charge per event).
Start building
Your idea, live in minutes.
Describe what you want. WebTwizz builds the real thing, then you click to change anything. No code needed.
Get started for free, no credit card needed.