Your first validation is free. We built it as a tool for the founder community and a way for you to discover SeedAngels. Re-running additional validations inside the app may use a token.
Free Startup Idea ValidatorStress-test your idea before you build it
Describe your startup idea in a few sentences. Our AI fact-checks the problem, sizes the market, profiles the customers, ranks the pain points and maps your competitors — so you know whether your idea holds up before investing time and money.
First validation freeConfidentialReady in about a minute
Validate your startup idea
Describe your idea in a few sentences. We'll do the rest.
A few sentences are enough — what problem it solves and for whom.
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Your idea is processed by OpenAI only to generate your report. We do not store your idea or the report. No human reads it.
How does it work?
Three steps. You describe your idea, our AI validates it, you read the report.
Describe your idea
A short paragraph is enough — what problem it solves and who has that problem.
AI validates your idea
A single AI pass fact-checks the problem, sizes the market, profiles personas and maps competitors.
Read your report
An interactive validation report with the problem, personas, market, competitors and a clear verdict.
The validation report covers the dimensions investors care about most at the idea stage:
Problem
Fact-checked problem statement and adjacent problems.
Pain ranking
Your problem ranked against adjacent ones by severity.
Personas
The customer profiles hit by this problem.
Market (SAM)
Target market size and growth dynamics.
Competitors
Who else solves this and how you differ.
Differentiation
What sets your offer apart.
Cost structure
A lean cost structure for a controlled launch.
Breakeven
Breakeven in revenue and in quantity.
Verdict
A synthetic, go / no-go read on the idea.
Turn your validated idea into an investor-ready project
SeedAngels takes your idea further: market analysis, financial forecasts, business plan and pitch deck — all generated from your idea, ready for investors.
Build my full project →Frequently asked questions
It fact-checks the problem your idea solves, surfaces adjacent problems, ranks the pain points by severity, profiles the customer personas, sizes the target market (SAM) and its growth, maps your competitors, articulates your differentiation, proposes a lean cost structure and breakeven, and ends with a synthetic verdict.
The Lean Canvas generator structures your idea into a 1-page business model. The idea validator goes one step earlier: it pressure-tests whether the problem is real, who it affects, how big the market is, and who you're up against — before you commit to building.
Your idea is sent to OpenAI only for the validation step and is not stored. The report is shown in your session — we do not save it on our servers. No human reads it.
The free validation relies on the AI's broad knowledge to estimate sources, market size and competitors. The deeper, sourced version with citations is available inside the SeedAngels app.
Typically about a minute. Please don't close the page during validation.