Plan before you build.
Built with technologies from industry leaders
The Problem
Every developer starts the same way.
You have an idea. You open Cursor. You start prompting. Six hours later, your database doesn't support real-time, your auth can't handle teams, and your storage costs 10x what you budgeted.
The architecture was wrong from the start. No AI coding tool told you.
What Preflight Catches
Real mistakes. Caught before line one.
Firebase for a project that needs SQL joins
Preflight flags this and suggests Supabase or PlanetScale instead.
No queue for AI processing that takes 30+ seconds
Preflight adds BullMQ or Inngest before your server crashes under load.
Auth provider that costs $500/mo at 50K users
Preflight compares Clerk, Supabase Auth, and Lucia with real cost curves.
WebSocket server with no horizontal scaling
Preflight recommends Redis pub/sub or a managed service like Ably.
What Preflight Does
The missing 30 minutes between your idea and your first line of code.
Describe what you're building in plain English. Preflight asks the questions a $400/hr architect would ask, then designs the architecture visually, scores every component across 8 dimensions, and lints for 30+ anti-patterns.
One click to export.
The Numbers
Every technology in the modern stack. Scored, compared, and recommended for your project.
- 229Technologies
- 22Categories
- 8Scoring Dimensions
- 30+Lint Rules
The Difference
Preflight vs. starting in Cursor
How It Works
Idea to implementation in 60 seconds.
- 01
Talk
Describe what you're building. Preflight asks smart follow-ups about your constraints, budget, timeline, and scale.
- 02
Choose
Get component recommendations with honest trade-offs. Pick, reject, or ask questions. It adapts.
- 03
Build
Your architecture appears on a visual canvas, scored and validated. One click exports to Cursor, Claude Code, or Lovable.
Built by developers who got burned
We rebuilt our hackathon project 3 times because the architecture was wrong.
Wrong database. Wrong auth. Wrong queue. Every time we started coding, we discovered the stack couldn't handle what we were building. By the third rewrite, we realized the problem wasn't the code. It was the decisions we made before we wrote any.
So we built the tool that would have saved us. Preflight is the architect we wished we had. It asks the hard questions upfront, knows every technology trade-off, and never lets you ship an architecture that breaks at scale.
"The 30 minutes that saves you 30 days."
Why This Matters
AI made building 10x faster. It also made building the wrong thing 10x faster.
Preflight is the guardrail. The architect in the room who asks "what happens at 10,000 users?" before you commit to a stack that breaks at 500.
Every AI tool helps you write code. None of them ask if you should.
Think first. Build right. Ship fast.
Join 2,000+ developers who plan before they build.
Free to start. No credit card required.