Secure Your Personal Data & Notes on Blockchain
Store any personal documents, private notes, or even seed phrases with end‑to‑end encryption.
Free to use. You only pay your own gas fees.
Trusted by security professionals
Own Your Data
Secure any personal document or text — from PDFs to private notes and seed phrases — with your keys and the blockchain.
On‑chain Security
Immutable storage on Polygon ensures your data and notes can’t be tampered with or lost.
Self‑Sovereign Control
Only you hold the keys. No third parties, no backdoors — complete ownership.
Strong Encryption
AES‑256 encryption with your keys keeps documents and secret phrases safe.
Distributed Storage
IPFS via Pinata means your files are always retrievable and not tied to one server.
Free To Use
Keyura is free. You only pay your own gas fees when interacting.
Web3 Native
Simple MetaMask workflow for creating your vault and storing data on chain.
Ready to secure your data?
It’s free to start. Just connect your wallet — you only pay gas.
How Keyura Works
Four simple steps to own and secure your data. Free service; you only pay gas.
Connect MetaMask
Use your wallet to own your identity and sign actions on chain.
Deploy Your Vault
One-time transaction creates your personal vault contract on Polygon.
Encrypt & Save Data
Encrypt documents or text locally and store references securely.
Access Anytime
Only you can decrypt with your keys. Retrieve from anywhere.
Connect MetaMask
Use your wallet to own your identity and sign actions on chain.
Deploy Your Vault
One-time transaction creates your personal vault contract on Polygon.
Encrypt & Save Data
Encrypt documents or text locally and store references securely.
Access Anytime
Only you can decrypt with your keys. Retrieve from anywhere.
Ready to Get Started?
It takes less than 5 minutes to set up your secure document vault. Join thousands of users who trust Keyura with their sensitive information.
Security Architecture
Our security infrastructure combines the best of blockchain technology, military-grade encryption, and zero-knowledge architecture.
Private by Default
Only you control access to your vault and content.
On‑chain Integrity
Tamper‑evident records backed by Polygon.
End‑to‑end Safety
Local encryption before anything leaves your device.
Self‑Custody Keys
You hold the keys — not custodial, not shared.
Transparent Actions
Every action is visible and auditable by you.
Resilient Storage
Designed for durability and availability.
Your Security Journey
100% Trustless Security
No backdoors, no third-party access, no single point of failure. Your documents are protected by mathematics, not promises.
Gas Fees
Keyura is free — you only pay your own gas. The values below are illustrative and depend on network conditions and POL price.
Gas Cost Reference
POL and USD approximations
Costs on Polygon vary with network load and contract logic. Below are rough estimates for your initial vault deployment and subsequent interactions such as storing or updating encrypted data.
Deploying your vault contract is a one‑time setup per user.
After deployment, you only pay gas when you store data on chain.
Your Estimate
Number of items to save (POL and USD)
Typical cost per document: ~$0.01–$0.02 (0.05–0.08 POL).
Compare to monthly cloud storage fees and data breach risks
Why Choose Pay-Per-Document?
No Subscriptions
Pay only for what you use, when you use it
Lifetime Access
Your documents remain secure and accessible forever
Complete Transparency
No hidden fees or surprise charges
Frequently Asked Questions
Everything you need to know about Keyura’s security and how it works
Anything personal: PDFs, images, notes, credentials, or even seed phrases. Content is encrypted locally with your key, then stored using decentralized infrastructure so only you can read it.
Still have questions?
Our team is here to help you understand how Keyura can secure your documents