End-to-end encrypted cloud storage where even we can't see your data. No backdoors. No compromises. Ever.
How your data stays private
Works with
Your passphrase never leaves your device. We derive keys locally, encrypt locally, and only send ciphertext to our servers. We are architecturally blind to your data.
Bank-grade security that still feels like normal cloud storage. Fast uploads, easy sharing, and nothing to give up on safety.
Your files are locked on your device with a key only you hold. Your password is never sent to us or saved anywhere.
Under the hood: XChaCha20-Poly1305 encryption, Argon2id key derivation.
Keep your files on the cloud service you prefer — and move them somewhere else whenever you want. No lock-in.
Works with: AWS S3, Cloudflare R2, Backblaze B2, MinIO.
Big files upload quickly and pick up where they left off if your connection drops.
How: files split into 4 MiB encrypted chunks for parallel, resumable transfer.
Send a file to someone and only they can open it. We never see what's inside.
Under the hood: X25519 key agreement — recipients decrypt with their own keys.
Use it in your browser today, with desktop and mobile apps on the way. Your private vault, everywhere.
Roadmap: web now; desktop (Tauri) and mobile (React Native) coming soon.
Our app's code is open for anyone to inspect, so you don't have to take our word for it.
Open-source client — every cryptographic operation is publicly auditable.
Transparency isn't a feature — it's a requirement. Here's exactly what our architecture makes possible, and what it makes impossible.
We didn't invent our own security. Everything here is a well-known, widely trusted standard that experts can check for themselves.
Turning your password into a key
Argon2id
Deliberately slow to guess — resists brute-force, even on powerful hardware.
Locking your files
XChaCha20-Poly1305
Strong 256-bit encryption that also detects tampering.
Sharing safely with others
X25519 + HKDF
Lets two people agree on a secret key without ever sending it.
Checking files are intact
BLAKE3
A fast, modern fingerprint that confirms nothing was altered.
Independent security audit planned with Cure53 / NCC Group
Client code will be fully open source at launch — every cryptographic operation auditable by anyone. View on GitHub →
No hidden fees. No data mining. You pay for storage, not for us to exploit your data.
200 GB encrypted storage
Includes the 14-day free trial before billing starts.
Full app — every feature unlocked
No credit card required. Choose a paid plan only if you continue.
2 TB encrypted storage
Everything you need to know before trusting us with your files.
Join the waitlist for early access. We'll never share your email — that would be ironic.