Your entire stack,
on one canvas.
Design databases, APIs, infrastructure and UI in a single visual workspace. Connect to real Postgres, Redis & S3. Export production-ready SQL, Prisma, OpenAPI and React.
Drag. Connect. Ship.
Try the canvas right here — drag nodes, connect them, see your stack take shape.
Every layer of your stack,
designed together.
Visual Schema Design
Model tables, columns, types, primary keys, foreign keys and constraints on a live canvas. Push directly to Postgres, MySQL or SQL Server — or import an existing schema in seconds.
API Design & Testing
Define endpoints with method, auth, params and responses. Test live from the node. Copy cURL. Export OpenAPI 3.0.
Auth & Roles
Document JWT, session, OAuth or API key strategies. Define roles and link auth blocks to endpoints.
Cron Jobs
Schedule URL calls or SQL jobs with cron expressions. The app runs them locally — see last-run status in real time.
Redis & S3
Connect to Redis (get, set, flush, key patterns) and S3-compatible storage (list, upload, delete) straight from the node panel.
UI Design & Code Export
Build low-fidelity UI layouts with a drag-and-drop palette of React primitives. Preview in demo mode. Export to React JSX or HTML with Tailwind, CSS Modules, or inline styles — ready to paste into your project.
Design visually.
Export production code.
Every node on your canvas can generate real code. Not boilerplate stubs — actual runnable output.
From blank canvas
to running system.
Add nodes to your canvas
Drag DB tables, API endpoints, auth blocks, Redis, S3, cron jobs and more onto one shared canvas. Position them to reflect your architecture.
Connect to real systems
Point a DB Connector at your Postgres or MySQL instance. Import your schema, or design new tables and push them. Test API endpoints live. Run cron jobs.
Export and ship
Export SQL DDL, Prisma schema, TypeORM entities, OpenAPI YAML, or React/HTML components directly from your canvas. Your diagram is your source of truth.
Describe your idea.
Get a schema.
The built-in AI chat (OpenAI, OpenRouter, or your own Ollama instance) can suggest tables from a plain-English description, auto-fill columns, and help you design your data model — all directly on the canvas.
Read the AI docs →Free to use.
Seriously.
Stackwyn is free. Download it, use every feature, connect to your own databases. No trial. No credit card.
Free
- ✓ Full canvas & all node types
- ✓ DB connections (Postgres, MySQL, MSSQL)
- ✓ Redis, S3, Cron jobs
- ✓ Schema & API exports
- ✓ UI Design & code export
- ✓ Local canvas save
- — Cloud save & sync
- — AI Assistant
- — Team collaboration
Sign in with a free account to use cloud save and the AI assistant.
Download freePro
- ✓ Everything in Free
- ✓ Cloud save & multi-device sync
- ✓ AI Assistant (OpenAI-powered)
- ✓ Team workspaces
- ✓ Real-time collaboration
- ✓ Share links with permissions
- ✓ Priority support
Start designing your stack today.
Free download. No account needed to get started.