Type
Tune every letter
Font, size, weight, leading and spacing, all by hand.
Build an AI SaaS App with AI
AI features + paid tiers + token tracking. The four pieces every AI SaaS needs, generated in a couple hours instead of a couple weeks.
Get started for free, no credit card needed.
0h
Auth + AI + billing + portal wired
0
Tier templates ready out of box
0%
Code ownership
0
Vendor model lock-in
01 / What you get
AI SaaS App, 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 (Supabase) + Stripe subscriptions in three tiers (Free, Pro, Team)
02
AI feature scaffold: streaming chat or generation, model swap-able
03
Per-user token usage tracked, displayed in-app, enforced at API layer
04
Plan-gated AI calls: Free gets N/month, Pro gets more, Team unlimited
05
Token cost dashboard so you can see margin per user, per plan
02 / Variants
3 variants you can ship.
01
AI writing tool
Generate copy, posts, emails. Per-document history, version compare, export.
02
AI image generator
Wraps DALL-E, Stable Diffusion, or Midjourney API. Gallery, plan-tiered resolution.
03
AI summariser / search
Upload docs, ask questions, search semantically. Document-grounded RAG.
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 builders shipping AI wrappers around a specific niche
→Teams adding AI features to an existing SaaS
→Founders launching a paid AI tool without rebuilding boilerplate
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.
Building the AI part is fun. Building the auth + Stripe + usage-tracking + webhook handling around it eats a weekend even with a starter. Generate it in an afternoon and spend the saved time on prompt engineering.
You own the model choice. Swap OpenAI → Anthropic → open-weight Llama by changing one line. Your business is the prompts and the UX, not the inference provider.
FAQ
Questions about AI SaaS App.
Everything you need to know before you generate it. Anything else, our team is one email away.
Every AI call writes to a usage table: user_id, prompt tokens, completion tokens, model, timestamp. The API layer reads the user's monthly total before each call and rejects if over plan. The dashboard rolls up per-user and per-plan token spend.
Webtwizz scaffolds a thin wrapper around the model call so the rest of the app doesn't care which provider is responding. Switching models is changing the wrapper's import. A/B testing models is supported via a feature flag on the user record.
Plan limits are stored as a config object: { free: 50000, pro: 500000, team: Infinity }. The API layer reads the user's plan and current-period usage, rejects with a clean error if over. The frontend hides the call button if at limit.
Build a margin dashboard: revenue per user (from Stripe) minus token cost (from usage). Output: this user costs $X in tokens, pays $Y, nets $Z. Spot-check Pro users who use heavily; they're where margin breaks.
Keep building
More saas apps you can ship.
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.
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.
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.