About LockNKey
LockNKey is a privacy-first communication platform built on a simple belief: your conversations should be yours alone. No public profiles, no identity tracking, no readable messages on our servers. Just you, the people you trust, and the keys that protect your conversations.
Key-Based Access
Instead of usernames and friend requests, LockNKey uses secret keys to control vault access. Share a key with someone, and they can join your conversation. No accounts required for access.
End-to-End Encrypted
Every message, image, and voice note is encrypted on your device using AES-256-GCM before it ever reaches our servers. We physically cannot read your conversations.
Available Everywhere
Use LockNKey on the web at locknkey.xyz or download the PurpleNotes app from the Google Play Store. Your vaults work across both platforms.
Built by flipcodex
LockNKey is developed by flipcodex, a developer focused on building privacy-respecting tools. We believe technology should empower users, not exploit them.
Our Mission
In a world where every message is stored, analyzed, and monetized, we wanted to build something different. LockNKey exists to prove that private communication doesn't have to be complicated or compromised. Our goal is to give everyone the tools for truly secure conversations — without requiring technical expertise or sacrificing usability.
How It Works
Create a vault — Choose a lock name, set a secret key, and optionally add a recovery question. The vault is immediately ready for encrypted conversations.
Share the key — Send the lock name and secret key to the people you want to invite. No sign-ups, no friend requests, no friction.
Chat securely — Send text messages, images, and voice notes. Everything is encrypted on your device and only decryptable by vault members.
Get Started
Ready to try private, encrypted conversations?