How to Validate a Business Idea Before You Build It

The most expensive way to test a business idea is to build it and see if anyone buys. Validation flips the order: you prove demand before you build, so you only invest real time and money in something people already want.

What validation actually proves

Not "do people like the idea?", everyone is polite. Validation proves that people will change their behavior: give you their time, their email, a pre-order, or money. Interest is cheap; commitment is signal.

The signals, from weak to strong

1. "That sounds useful." Worthless on its own: politeness.
2. They describe the problem unprompted. Better: the pain is real.
3. They already pay for a clumsy workaround. Strong: budget exists.
4. They give you their email to hear more. Real commitment.
5. They pre-pay or pre-commit. The gold standard.

A simple validation process

1. Name the problem and who has it. Be specific about the person.
2. Talk to 5–10 of them. Ask about what they do today and what it costs them, not whether they like your idea.
3. Make a small ask. A pre-order, a deposit, a paid pilot, or at least an email signup for a landing page.
4. Watch behavior, not words. Did anyone actually act?

Score it before you commit

A worthy idea is usually painful, frequent, expensive, and reachable, and someone will pay. The free walks you through these dimensions, scores your idea 0–100, and flags the weakest spot to shore up before you build.