How to validate a startup idea

You found a startup idea — maybe from the Ideater feed, maybe from a friend, maybe from your own frustration. Before you spend three months building it, spend two weeks validating it. This guide walks through a lightweight process any solo founder can run.

1. Write the problem down in one sentence

Force yourself to compress the opportunity into a single sentence: who has the problem, what the problem is, and what they do about it today. If you can't write that sentence, you don't understand the problem well enough to sell a solution.

2. Find ten people who have the problem

Go where they already complain — Reddit, niche Discord servers, LinkedIn groups, indie forums. Ideater surfaces these complaints daily, so start with the source posts and message the authors. Aim for ten short conversations, not a formal survey.

3. Interview without pitching

Ask about the last time they hit the problem, what they tried, and what they'd pay to make it go away. Do not describe your idea. The goal is to hear whether the pain is urgent enough that they've already looked for a fix.

4. Run a demand test

Put up a one-page landing site describing the outcome, not the product. Drive a small amount of paid traffic or share it in communities where the problem lives. Measure email sign-ups per hundred visitors — under 5% is a weak signal, over 15% is strong.

5. Pre-sell before you build

The clearest validation is money. Offer a discounted "founding customer" price with a firm delivery date and take pre-orders. Even five paying customers is enough to justify building the first version. Zero pre-orders is a gift — it tells you to keep looking.

6. Kill it fast if the signals are weak

Most ideas fail validation, and that's the point. A killed idea costs a weekend; a shipped-but-unwanted product costs a year. When in doubt, go back to the feed and pick another problem — the opportunity cost of the wrong idea is bigger than you think.

Where to find more ideas

Ideater publishes a daily feed of real complaints turned into structured opportunities — problem, market, timing, and business model. Browse the feed to find your next candidate.