Name a SaaS.
We clone it in 5 minutes.

Give the agent a company name or a link — Slack, Notion, Cal.com, anything — and it generates a full-stack clone with auth, payments, dashboards, and production-grade architecture. Powered by Claude AI.

Clone Your First SaaS — $15

500+ devs ship with Croissant

TypeScript

NestJS

Next.js

React

React Native

Expo

Turborepo

How it works

3 steps. 5 minutes. Full SaaS.

Name the SaaS

Tell the agent what you want to clone — "Build me a Calendly clone" or "Clone Linear's issue tracker".

Agent builds it

Claude generates the full stack: API, web app, mobile app, database schema, auth, payments — all wired together.

Ship & customize

You get a working app with production-grade code. Customize the UI, add your business logic, and deploy.

Clone examples

“Clone [name]” — and it just works.

The agent understands what each SaaS does and generates the matching features with proper architecture, auth, and integrations.

💬

“Clone Slack”

Real-time messaging, channels, threads, file sharing, presence indicators, workspace switching.

📝

“Clone Notion”

Block editor, nested pages, databases with views, sharing & permissions, templates, real-time collaboration.

💳

“Clone Stripe”

Payment processing, subscription management, invoicing, webhook handlers, customer portal.

📐

“Clone Linear”

Issue tracking, sprints, roadmaps, keyboard shortcuts, real-time sync, GitHub integration.

📅

“Clone Cal.com”

Scheduling, availability management, calendar sync, booking flows, reminders, team scheduling.

▲

“Clone Vercel Dashboard”

Deployment management, environment variables, domains, analytics, team collaboration, logs.

And many more

TrelloIntercomShopifyMixpanelAirbnbDiscordLoomFigma commentsGitHub IssuesTypeformMailchimpUber EatsZillowDuolingoTodoistAirtable

What you get

Every clone comes with everything.

Not starter code. Not a template. A full production-ready app with real engineering patterns.

🔐

Authentication

JWT + refresh tokens, OAuth2, RBAC guards, rate-limited login, session invalidation.

💳

Payments

Stripe Checkout, subscription lifecycle, webhook handlers, invoicing, customer portal.

📬

Notifications

Transactional emails, FCM push, in-app notification feed, delivery tracking.

📁

File Uploads

Pre-signed S3 URLs, multipart upload, image optimization, CDN-ready paths.

⚡

Background Jobs

BullMQ queues, cron schedulers, dead letter queues, retries, job dashboard.

📊

Admin Dashboard

CRUD generators, data tables, role-based UI, feature flags, audit logs.

🧪

Full Test Suite

Unit tests (Jest), integration tests (Supertest), E2E (Playwright), mobile (Detox).

🚀

CI/CD Pipeline

GitHub Actions, Docker, EAS Build for mobile, lint + type-check + test gates.

🛡️

Security

OWASP Top 10, input validation, CORS, rate limiting, secure headers, Zod schemas.

Comparison

Claude alone vs Croissant Claude

Claude without Croissant

✕Generates random folder structures every time
✕Mixes patterns — MVC in one file, DDD in another
✕No commit conventions, no lint, no hooks
✕Auth code with security holes you don't notice
✕Ignores your architecture after 3 prompts
✕You spend more time fixing than building

Inconsistent, fragile code

Claude with Croissant

CLAUDE.md enforces patterns in every module
SOLID + Clean Architecture from line 1
Conventional Commits + husky + lint-staged
"Clone Slack" — full SaaS in 5 minutes
Ship production-grade code, not prototypes

Professional code. Every time.

Wall of love

Developers who cloned & shipped

“I said 'clone Calendly' and had a working booking app with auth, Stripe, and email notifications in under 10 minutes. This is insane.”

Alex K.

Solo founder, shipped 3 products

“We cloned our competitor's core features as a starting point, then customized everything. Saved us months of architecture decisions.”

Maria S.

CTO at a Series A startup

“The generated code isn't boilerplate garbage — it's real production code with proper auth, error handling, and tests. I was shocked.”

Tom R.

Senior engineer, ex-FAANG

Pricing

Clone any SaaS.
One price. No BS.

One-time payment. No subscriptions. Clone unlimited SaaS products forever.

Croissant Claude

$15USD

Clone any SaaS with production-grade code

Clone any SaaS by name — Slack, Notion, Linear, etc.

Full-stack output (NestJS + Next.js + React Native + Expo)

Auth, payments, notifications — pre-wired

CLAUDE.md system for AI-consistent code

SOLID + Clean Architecture patterns

Conventional Commits + husky + commitlint

Full testing suite (Jest, Playwright, Detox)

CI/CD (GitHub Actions, Docker, EAS Build)

OWASP security patterns

Clerk-level UI components included

Unlimited clones — use it forever

Lifetime updates & new modules

Community Discord

Instant access after purchase

Frequently asked questions

How does cloning work?

You tell the agent what SaaS to clone — 'Clone Slack', 'Build me a Calendly clone', 'Clone Linear's issue tracker'. The agent understands the product's core features and generates a full-stack app with proper architecture, auth, payments, and everything wired together.

Is this a template or boilerplate?

No. It's a TypeScript agent powered by Claude AI that generates unique, production-grade code tailored to each SaaS you clone. It uses CLAUDE.md files, SOLID patterns, and enforced conventions — not copy-pasted starter code.

What tech stack does it use?

NestJS for the API, Next.js for the web app, React Native + Expo for mobile, all managed in a Turborepo monorepo with shared types and schemas. TypeScript everywhere, strict mode, zero any.

Can I customize the generated code?

Absolutely. The generated code is yours — clean, well-structured, and easy to modify. Add features, change the UI, swap integrations. It's designed to be a starting point you actually want to build on.

Do I need all 4 frameworks?

No. Use any combination. Each app is independent — delete what you don't need. The shared packages adapt to any subset.

How do I get access?

Instant access after purchase. You get the full agent, all subagents, and lifetime updates.

Stop building from scratch.
Clone it. Ship it. Own it.

Name any SaaS. Get a full-stack clone in 5 minutes. Production-grade. Customizable. Yours forever.

Get Croissant Claude — $15

One-time payment·Unlimited clones·Instant access

Name a SaaS.We clone it in 5 minutes.