DataShadow helps you check if your info's been leaked — without revealing it.
We hash your email, use a k-anonymity method, and never store anything.
Simple, private, and fast. No shady stuff.
DataShadow was built with one goal: don't leak your info while checking for leaks.
No logins, no data storage, no tracking. Your email is hashed and checked using k-anonymity, so nothing sensitive ever touches the server directly.
You get answers — we keep nothing.
We don't store or track your queries. Ever.
Only a fragment of your hashed input is sent — your full data stays private.
Frontend is open source. Backend isn't (yet), but we'll keep you informed.
When you scan, your email is hashed and partially sent — not the whole thing. This k-anonymity trick means we never see your full address, and we never store anything.
You get breach results. We get… nothing.
This isn't live yet — but eventually, DataShadow will let you opt in to ongoing checks for new breaches tied to your email.
No spam, no creepy tracking — just a heads-up if your info pops up somewhere shady.
Your input gets hashed and trimmed so we never see the full thing — no storage, no tracking.
Built with modern web tools like Next.js & Tailwind. Fast, minimal, and responsive.
Handles encrypted breach data. Not open source (yet) because, well… leaks contain leaks.
Building a more private internet — one sketchy breach at a time. Jump in or just cheer from the sidelines. 🫡
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