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Open Teardown
Click the extension on any product or company page.
TeardownGet the read on any product, in one click
Teardown walks you through the questions PMs actually ask, then shows you how your read compares.
Bring your own Claude API key. No signup, no subscription required.
Open source · Your API key never leaves your device
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How it works
A sharper product instinct, one read at a time.
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Make your read
Answer five quick questions: target user, job to be done, differentiation, gap, and metric to move.
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See The Read
Compare your thinking with the AI’s take on the same questions.
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Get your score
See a score reflecting how specific and grounded your five answers were, not a rubric, just an honest read.
Scored on specificity and groundedness. Your five answers are read for how concrete and well-supported they are, not measured against a rubric. No made-up framework, no black box.
Trust & transparency
Built to be safe by default
The best tools earn trust by making their boundaries clear, not by asking you to take their word for it.
Your key stays yours
Your Claude API key stays on your device. We never see it, store it, or send it anywhere except directly to Anthropic’s API.
Open by design
Open source and MIT licensed. Check the code yourself.
View on GitHubPlain-language privacy
Read exactly how Teardown handles your data.
Privacy PolicyHelp shape it
Found a bug or have an idea? We want to hear it.
Send feedbackReady to test your product instincts?
Pick a product. Make your read. See where you land.