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  1. Home
  2. Tools
  3. Startup Idea Validator

Startup Idea Validator

BusinessNewFree to Try

Startup Idea Validator

Describe your startup idea and target market. Get a structured validation report with a 1-10 score, rough TAM/SAM/SOM, real competitor analysis, GTM hypothesis, key risks, and 5 cheap experiments to run this week.

Startup Idea Validator

Pressure-test your idea before you build it

How It Works

  1. Describe your startup idea in 1-3 paragraphs
  2. Define your target market and customer
  3. Pick your stage and geography
  4. Get an honest validation report with a 1-10 score

1-3 paragraphs work best.

Validation report

No validation report yet

Fill out the form on the left and click "Validate my idea" to get an honest, structured assessment.

Usage Examples

  • Validate a new B2B SaaS idea before writing a single line of code
  • Pressure-test a side project to decide whether to keep going or park it
  • Get a quick competitor map and GTM hypothesis for a new product
  • Generate a list of cheap experiments to validate demand this week
  • Stress-test a co-founder pitch before raising money

Best Practices

  • Write your idea in 1-3 paragraphs — explain the product, who it's for, and how it works
  • Be specific about the target customer (role, company size, segment) — vague answers get vague reports
  • Pick the stage honestly — 'just an idea' is fine and gets you a more useful report than pretending
  • If you have an unfair advantage (domain expertise, network, distribution), state it — it changes the verdict
  • Treat the report as a starting point — go run the 5 experiments, then come back with real data

Frequently asked questions

What does the validation report actually contain?+
You get a structured report with a 1-10 score, a rough TAM/SAM/SOM, 3-5 real competitors with positioning notes, your likely differentiation, a go-to-market hypothesis, the top risks, and 5 cheap experiments you can run this week. The output streams as markdown so you can copy it into your founder doc, Notion, or share it with co-founders.
How is this different from asking ChatGPT to critique my idea?+
ChatGPT in a blank window will usually try to be encouraging and skim the surface. This tool runs a fixed validation prompt that forces a structured 1-10 score, real (named) competitors, market sizing, and concrete experiments. You get the same sections every time, which makes it easy to compare two ideas side by side or re-run the same idea after you learn something.
Will the AI be honest if my idea is weak?+
Yes. The prompt explicitly instructs the model not to be polite — it has to call out weak demand, crowded markets, unclear wedges, and ideas that look more like features than companies. If your idea scores a 4/10, that's the report you'll get. The point of the tool is to save you months of building the wrong thing, not to validate your feelings.
Are the competitors it lists real or invented?+
The prompt instructs the model to use real, recognizable companies wherever possible — not made-up names. That said, LLMs can occasionally hallucinate or list a company that pivoted, was acquired, or shut down. Always click through to verify the competitors that matter before you cite them in a deck or to investors.
Does it work for Bulgaria and the EU, or only US startups?+
The Geography field lets you pick Bulgaria, EU, Global or Other, and the validation adapts: market sizing is scaled to that geography, and GTM and competitors are picked accordingly. You can describe your idea in English or Bulgarian — both work and produce idiomatic output in the same language.

Related tools

Brand Name Generator

Generate unique and memorable brand names for your business with domain availability check.

Try free
The Perfect Pitch

Generate professional elevator pitches for your business ideas using AI.

Try free
AI Use Case Mapper

Pick your industry and department to see the top 10 AI automations prioritized by ROI.

Try free
  1. Home
  2. Tools
  3. Startup Idea Validator

Startup Idea Validator

BusinessNewFree to Try

Startup Idea Validator

Describe your startup idea and target market. Get a structured validation report with a 1-10 score, rough TAM/SAM/SOM, real competitor analysis, GTM hypothesis, key risks, and 5 cheap experiments to run this week.

Startup Idea Validator

Pressure-test your idea before you build it

How It Works

  1. Describe your startup idea in 1-3 paragraphs
  2. Define your target market and customer
  3. Pick your stage and geography
  4. Get an honest validation report with a 1-10 score

1-3 paragraphs work best.

Validation report

No validation report yet

Fill out the form on the left and click "Validate my idea" to get an honest, structured assessment.

Usage Examples

  • Validate a new B2B SaaS idea before writing a single line of code
  • Pressure-test a side project to decide whether to keep going or park it
  • Get a quick competitor map and GTM hypothesis for a new product
  • Generate a list of cheap experiments to validate demand this week
  • Stress-test a co-founder pitch before raising money

Best Practices

  • Write your idea in 1-3 paragraphs — explain the product, who it's for, and how it works
  • Be specific about the target customer (role, company size, segment) — vague answers get vague reports
  • Pick the stage honestly — 'just an idea' is fine and gets you a more useful report than pretending
  • If you have an unfair advantage (domain expertise, network, distribution), state it — it changes the verdict
  • Treat the report as a starting point — go run the 5 experiments, then come back with real data

Frequently asked questions

What does the validation report actually contain?+
You get a structured report with a 1-10 score, a rough TAM/SAM/SOM, 3-5 real competitors with positioning notes, your likely differentiation, a go-to-market hypothesis, the top risks, and 5 cheap experiments you can run this week. The output streams as markdown so you can copy it into your founder doc, Notion, or share it with co-founders.
How is this different from asking ChatGPT to critique my idea?+
ChatGPT in a blank window will usually try to be encouraging and skim the surface. This tool runs a fixed validation prompt that forces a structured 1-10 score, real (named) competitors, market sizing, and concrete experiments. You get the same sections every time, which makes it easy to compare two ideas side by side or re-run the same idea after you learn something.
Will the AI be honest if my idea is weak?+
Yes. The prompt explicitly instructs the model not to be polite — it has to call out weak demand, crowded markets, unclear wedges, and ideas that look more like features than companies. If your idea scores a 4/10, that's the report you'll get. The point of the tool is to save you months of building the wrong thing, not to validate your feelings.
Are the competitors it lists real or invented?+
The prompt instructs the model to use real, recognizable companies wherever possible — not made-up names. That said, LLMs can occasionally hallucinate or list a company that pivoted, was acquired, or shut down. Always click through to verify the competitors that matter before you cite them in a deck or to investors.
Does it work for Bulgaria and the EU, or only US startups?+
The Geography field lets you pick Bulgaria, EU, Global or Other, and the validation adapts: market sizing is scaled to that geography, and GTM and competitors are picked accordingly. You can describe your idea in English or Bulgarian — both work and produce idiomatic output in the same language.

Related tools

Brand Name Generator

Generate unique and memorable brand names for your business with domain availability check.

Try free
The Perfect Pitch

Generate professional elevator pitches for your business ideas using AI.

Try free
AI Use Case Mapper

Pick your industry and department to see the top 10 AI automations prioritized by ROI.

Try free