is an AI-first composable package ecosystem.
Open source. Real architecture. Ship in minutes. Built to scale.
Built like the best teams
Code is cheap.
Scaling is not.
Generating code is solved. The last 10%, the part that separates a toy prototype from a business that grows on hard data, is where Molecule lives.
- No lock-in
- Tested
- CI/CD
- Migrations
- Monitoring
- Logging
- Analytics
- Security
Build a CRM with Google sign-in and Stripe billing.
- Wired Google OAuth
- Wired Stripe billing
- Wired PostgreSQL
- Wired analytics
- Generated auth, dashboard & settings
- Flagged your API keys for setup
- Tests passing, live preview ready
Real architecture
A step above vibe coding.
Not a throwaway prototype. Real, decoupled architecture that teams of seasoned professionals can own, audit, and scale. Swap providers without rewriting your app.
Open by design
Open source, no lock-in.
Open source
Apache-2.0. Browse and self-host everything.
Always expanding
New providers and integrations land constantly, from us and the community.
Deploy with us
Optional. Pay only for the metered AI and infrastructure you use.
Wire it in, it works
Everything a real app needs.
Every app needs the same integrations (payments, uploads, notifications, etc.), and most AI tools regenerate them from scratch every time. Molecule already does this for you, battle-tested, so your tokens go toward what really matters.
- Auth & OAuth
- Two-factor auth
- Payments
- Databases
- Caching
- AI & agents
- Search
- Realtime
- Background jobs
- Scheduling
- Uploads
- Analytics
- Logging & monitoring
- Notifications
- Localization (i18n)
- Accessibility (a11y)
- Testing
- CI/CD & deploys
- Web, mobile & desktop
Built for AI, from the ground up.
Complete, tested packages you can drop in, designed for AI to understand and wire together, especially through Synthase, our custom harness.
Frequently asked questions
What is Molecule.dev?
A composable package ecosystem with an AI harness that assembles, runs, and deploys full-stack apps. New project or existing app.
How does it work?
Describe what you want in your own words. Molecule wires battle-tested packages into real, decoupled code and runs it in a live preview, then deploys in a click when you’re ready.
What stack does it build with?
Today, TypeScript and Node with your choice of frontend, React, Vue, Svelte, and more, plus React Native for mobile. The architecture isn’t tied to any one stack, so the list keeps growing, and we can add a new language or framework fast at any request.
How is it different from other AI coding tools?
Real, decoupled architecture you can ship and maintain, not a throwaway prototype. It composes tested, maintained packages instead of one-off generated code, so the same proven building blocks power every project.
Can I use it with an app I already have?
Two ways. Connect your repo, and Synthase adds the features and integrations you ask for directly to your codebase. Or install the open-source @molecule packages into your project and wire them in with the bond pattern, like any dependency.
Is there any lock-in?
None. You own the code, real and readable, built on open-source packages (Apache-2.0). Swap any provider, export it, self-host anything.
What does it cost?
Free to self-host. Deploy with Molecule and pay only for the AI and infrastructure you use.