One config.yaml → full backend: models, migrations, CRUD, and auth for FastAPI, NestJS, or Go Fiber. FastDev Studio lets you design APIs visually, preview generated code, and download a ready-to-deploy project. Clean, editable code you fully own. Next.js frontend generation coming soon.
I built FastDev because I was tired of spending the first 2–3 days of every project writing the same boilerplate — models, migrations, CRUD routes, auth wiring — before I could touch actual business logic.
The idea is simple: define your API once in config.yaml, pick a stack (FastAPI, NestJS, or Go Fiber), and get a full backend you can read, edit, and deploy anywhere. No black-box codegen, no lock-in.
FastDev Studio adds a visual YAML editor, live file preview, zip download, and an AI assistant to help you iterate on your schema.
We're actively building Next.js frontend generation next — same YAML, full stack.
Would love your feedback! What stack or feature should we prioritize?
Try it free at fastdev.tech — sign in with Google and create your first project in under a minute.
Report
If I change the config.yaml after the first generation, does it regenerate the whole backend or does it try to merge changes into code I've already edited by hand?
Built something similar last year and the lack of WebSocket or background job scaffolding was the main pain point. Would love to see FastDev optionally generate a Celery or BullMQ setup alongside the CRUD, so the project is actually deploy-ready beyond just the REST endpoints.
@asiyekmeogipbc yes, I am trying to add optionals like Message Quebe, WebSocket
Report
honestly the visual API designer is super clean and the generated code actually looks readable, not like some auto mess. took me like 10 minutes to spin up a FastAPI project with auth and migrations ready to go. solid stuff
The yaml-to-project pipeline is really well thought out, especially previewing the generated code before download so you actually trust what you're getting instead of hoping for the best.
Report
the fact that you can preview the generated code right in the studio before downloading is honestly such a smart touch, makes it feel way less like a black box
EmailFlow.AI Agentic Newsletter Platform
If I change the config.yaml after the first generation, does it regenerate the whole backend or does it try to merge changes into code I've already edited by hand?
EmailFlow.AI Agentic Newsletter Platform
@talhakhalidmtk it regenerate the whole backend. I am trying to fix it
@cao_phuc okay boss
Built something similar last year and the lack of WebSocket or background job scaffolding was the main pain point. Would love to see FastDev optionally generate a Celery or BullMQ setup alongside the CRUD, so the project is actually deploy-ready beyond just the REST endpoints.
EmailFlow.AI Agentic Newsletter Platform
@asiyekmeogipbc yes, I am trying to add optionals like Message Quebe, WebSocket
honestly the visual API designer is super clean and the generated code actually looks readable, not like some auto mess. took me like 10 minutes to spin up a FastAPI project with auth and migrations ready to go. solid stuff
EmailFlow.AI Agentic Newsletter Platform
@atakandeftsjbn Thank you so much
The yaml-to-project pipeline is really well thought out, especially previewing the generated code before download so you actually trust what you're getting instead of hoping for the best.
the fact that you can preview the generated code right in the studio before downloading is honestly such a smart touch, makes it feel way less like a black box