Hello Dev community! π
I'm excited to share a project I've been pouring my heart into: KozVault (https://kozvault.docudeeper.com/).
The Problem
While evaluating existing secret managers, I realized a glaring blind spot: digital legacy. We secure our passwords for today, but what happens to our digital lives (crypto wallets, important documents, final messages) if we're no longer here? Most tools either ignore this or handle it in a non-secure, centralized way.
The Solution: KozVault

I decided to build a solution that prioritizes absolute privacy while solving the legacy problem. KozVault is a Zero-Knowledge secret manager. This means your master secret never leaves your device. The server only ever sees encrypted blobs.
Key Technical Highlights
- True Zero-Knowledge: HMAC-SHA256 authentication in <1ms. No master key is ever transmitted.
- Offline-First PWA: Designed to work seamlessly even without an internet connection. Your data is yours, regardless of network status.
- Digital Wills & Time Capsules: Programmable, encrypted access granting for the future. You can schedule voice mails, video mails, or file releases to specific dates.
Why I Built This
As an independent developer, I wanted to create a tool that respects user privacy by design, without the bloat or data-tracking of big tech alternatives.
I Need Your Feedback!
The free tier is live and fully functional. I am actively looking for feedback from fellow developers, security enthusiasts, and UX experts.
- Is the onboarding clear?
- Are there any red flags in the security approach?
- What features would you add?
Drop a comment below or test it out directly at:
KozVault
Thanks for reading, and happy coding! π»π
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