Free Idea validator - 8 Free AI tools

Informly Idea Validator v2.5

Validate and grow your business idea with AI.

Startup ideas

Open

Kevin Corrigan

🙏 45 karma

Feb 20, 2024

@Informly Idea Validator

Edisa, thanks for the reply. Didn't know about the confidentiality guarantee.

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Released 1y ago

Free + from $29

15,931

453

4.3

Cresh v2.0

Analyze and refine business ideas with advanced AI.

Startup idea validation

Open

22,782 cresh.me

This is really great opportunity to check any business ideas!

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🇵🇱 Poland

Released 3mo ago

Free + from $6

37,464

171

4.6

Preuve AI 2.0

Find out if your idea is worth building. Instantly.

Startup idea validation

Open

31,746 preuve.ai

So I tested out Test Your Idea, and it actually works pretty well. You put in your idea, wait a minute, and it shows you the stuff you've been missing. Got some decent pivot suggestions that helped me refocus from a tiny niche to something way bigger. Saved me from probably wasting a few months in the wrong direction if you're actually gonna build something, not just daydreaming about it

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Released 3mo ago

34,556

44

5.0

Impectly

Find profitable startup ideas backed by real revenue data.

Startup idea validation

Open

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Released 2mo ago

Free + from $19/mo

557

9

5.0

Goovalid

Validate Your Business Ideas in Seconds!

Startup idea validation

Open

14 goovalid.com

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Released 7mo ago

Free + from $24.90/mo

661

11

Build Or Not

Data-driven startup decisions that boost success rates.

Startup idea validation

Open

shoes feiyue

🛠️ 3 tools 🙏 211 karma

Aug 20, 2025

@Build Or Not

As the founder of BuildOrNot.io, I’m excited to announce that our platform has just been launched. At this early stage, our most valuable asset is your feedback. I warmly invite you to try BuildOrNot.io and share your thoughts—both the strengths you find useful and the shortcomings we should improve. Your ratings and comments will directly help us refine the tool, enhance the user experience, and make the platform more valuable for every entrepreneur. Your voice matters, and I truly appreciate your support on this journey.

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Released 10mo ago

Free + from $20/mo

1,158

29

5.0

Evalyy

Upload PDFs, launch exam-ready quizzes in seconds.

Quizzes

Open

14,877 www.evalyy.com

Great App! Comes in handy to generate questionnaires or quizzes out of specific topics from PDFs and scanned notes. If you are looking to boost kids performances either as a parent or a teacher then this is the app. Try it to believe it!

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Released 5mo ago

Free + from $3

16,262

16

4.2

Athanor Market v2.0

28 tools run one prompt. We run 5 AI agents that debate.

Startup evaluation

Open

9,223 athanor.market

I tested the product on my own idea and was really satisfied with the result. The analysis feels structured, professional, and much more grounded than a typical LLM chat. It helped me see both the strengths and weak points of the idea and made me want to run it again with a more thoughtful input. I also liked the detailed AI analysis logging, the debate flow, and the potential/readiness matrix. Even after one run, the product already feels valuable for a founder. With deeper UX/UI and technical development, I can see strong potential in it.

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Released 2mo ago

Free + from $39

11,216

23

5.0