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Dudou
zero-knowledge vault for passwords, notes & secrets
Dudou is a password-less secret manager on a zero-knowledge model. Forget the master password you can lose, reset, or get phished — you write down a single BIP-39 mnemonic phrase once, and it derives your encryption keys locally, so the server never sees them. Unlock on any device with passkeys(fringerprint), store passwords and secret notes end-to-end encrypted, autofill forms in English or Chinese, and sync everywhere. Free to start; PRIME from $1/month.
Three things that make Dudou different:
1. Mnemonic as master key — one BIP 39 phrase. It's 12 human-readable words, so it works as a digital backup and on paper.
2. Zero-knowledge, totally — your mnemonic derives your keys locally; the server only ever stores your encrypted master key. It literally cannot read your vault.
3. Passkeys as far as possible — daily unlock is fingerprint/PIN via WebAuthn PRF, which derives your unlock key from the passkey itself. No DEUK sits in localStorage on PRF-capable devices.
Would love your take on whether mnemonic + passkey-PRF is the right trade-off.
About Dudou on Product Hunt
“zero-knowledge vault for passwords, notes & secrets”
Dudou was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #101 on the daily leaderboard. Dudou is a password-less secret manager on a zero-knowledge model. Forget the master password you can lose, reset, or get phished — you write down a single BIP-39 mnemonic phrase once, and it derives your encryption keys locally, so the server never sees them. Unlock on any device with passkeys(fringerprint), store passwords and secret notes end-to-end encrypted, autofill forms in English or Chinese, and sync everywhere. Free to start; PRIME from $1/month.
On the analytics side, Dudou competes within Privacy, Password manager and Security — topics that collectively have 14.7k followers on Product Hunt. The dashboard above tracks how Dudou performed against the three products that launched closest to it on the same day.
Who hunted Dudou?
Dudou was hunted by jazzology. 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.
For a complete overview of Dudou including community comment highlights and product details, visit the product overview.
jazzology