Pwned Password Check
Check if a password leaked, without it leaving your device
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Type a password to see how many times it appears in known data breaches, plus a 0-100 strength score and an estimated time to crack. The password is hashed with SHA-1 in your browser and only the first 5 characters of the hash go to the Have I Been Pwned range API (k-anonymity), so the password and its full hash never leave your device. You can also search which services were breached and send a family checklist so everyone checks their own. Free, no sign-up, 9 languages.
PH · launched Nov 14, 2026 · 1 upvote (top 65%) · 0 views
Niche: credential management and security tools · 78 launches, 14 in the last 7 days ▲ +56% · Explore this niche →
Category and tags
- Security
- Dev tools
- B2C
- Not AI
- Commercial product
- Privacy
- Security
Visit website ↗ Source listing ↗
More like this: all 78 launches in credential management and security tools →
Could you build this?
Yes The product wraps the public Have I Been Pwned range API with client-side SHA-1 hashing via the Web Crypto API, which is a well-documented, standard integration.
Competitors
Other products that read as similar to this one : 246 launches clear the similarity bar, closest 8 shown.
Attention rank: #92 of 247 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 378 days after the earliest competitor.
- Your Password Generator · ph · 2026-10-19 · 2 upvotes · similarity 0.49
- Leakill · ph · 2026-10-16 · 1 upvotes · similarity 0.47
- Uniklo.cz · ph · 2026-09-18 · 1 upvotes · similarity 0.47
- EmailLeaked · ph · 2026-10-11 · 1 upvotes · similarity 0.46
- The Lost 'N Found · ph · 2026-10-13 · 1 upvotes · similarity 0.45
- Secret Key · ph · 2026-10-31 · 101 upvotes · similarity 0.45
- Secure Password Generator · ph · 2026-09-16 · 1 upvotes · similarity 0.45
- Frost Rank Password Generator · ph · 2026-09-11 · 1 upvotes · similarity 0.45
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.