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June 19, 2026 Free tool for startup idea validation

If you've ever read Jason Cohen's writing on startup viability, you know it's a great framework for quickly evaluating a startup idea.

I kept coming back to it every time I started something new, so with his permission I turned it into a simple free web tool — mostly for myself, but figured others might find it useful too.

There's also a second tab where you can log conversations with potential customers and track what you're actually hearing. Keeps you honest.

Free, no signup, no trackers. Your input stays on your device.

→ startupideavalidation.com

Have fun validating!

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