Quantum computers will crack most passwords in seconds. Test yours now free, instant, nothing stored. See how long your password survives a quantum attack.
Hey Product Hunt! 👋
I built QPasswordStrong because I kept reading about quantum computing threats and realized nobody was explaining it to normal people in a simple way.
Most password checkers tell you "weak" or "strong" based on old rules. But quantum computers change everything thanks to Grover's algorithm, they can effectively halve the security of any password. An 8-character password that would take a classical computer 400 years to crack? A quantum computer does it in minutes.
So I built a tool that shows you two crack times side by side, classical and quantum, so you can actually see the difference and understand what "quantum-safe" really means.
A few things I'm proud of:
🔒 Your password never leaves your browser — everything runs locally in JavaScript
⚛️ Real Grover's algorithm math, not made-up scores
🛡️ A "Quantum-Safe" rating for passwords with enough entropy to survive the quantum era
Completely free, no account needed
Would love your feedback, especially from anyone in security who wants to poke holes in the quantum crack time model. Happy to discuss the math! 🙏
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About QPasswordStrong on Product Hunt
“Is your password safe from quantum computers?”
QPasswordStrong was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #86 on the daily leaderboard. Quantum computers will crack most passwords in seconds. Test yours now free, instant, nothing stored. See how long your password survives a quantum attack.
QPasswordStrong was featured in Privacy (11k followers), Password manager (577 followers) and Security (2.6k followers) on Product Hunt. Together, these topics include over 10.2k products, making this a competitive space to launch in.
Who hunted QPasswordStrong?
QPasswordStrong was hunted by Manuel Cardenas. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Manuel Cardenas