**Built by an engineer with too much free time.**
**Absolutely Private
Cloud Storage**
"Even the operator doesn't know your data. Enterprise-grade performance — for one person or many."
Concept
A fully private cloud running on enterprise-grade servers.
The Gate to Absolute Privacy
Three layers of protection keeping your data safe.
“Access is only possible through a dedicated encrypted tunnel. Even the operator can’t see what’s inside. And because it runs on enterprise-grade hardware, there are no speed limits.”
overview
“High-performance cloud storage — no personal information required, no artificial limits.”
To Secure
WireGuard VPN
**Secure access through a dedicated encrypted tunnel**
**Secure Communications**
**A secure network invisible to the outside world**
**Per-device management**
**Your other devices stay safe even if you lose your phone**
**Easy Support**
**No tedious identity verification — fast, direct support**
**No Personal Information Required**
No phone number. No email address. Ever.
To Store & Work
Nextcloud
**Feature-rich storage for photos, videos, music, and more**
Collabora Online
**Word & Excel-style document editing — entirely in your browser**
**Word & Excel-style document editing — entirely in your browser**
**No speed limits — blazing fast when capacity is available**
**Ultra-secure communications**
**Video calls & chat supported**
**Flexible usage**
**Use all 3 devices yourself, or share them across 3 people**
Nextcloud-APP
With the Nextcloud client for Android and iOS, you can sync, edit, and share files over a secure encrypted connection.
WireGuard®-APP
A simple, fast, and modern VPN built on state-of-the-art encryption technology.
Opening Hours
All times are in Japan Standard Time (JST).
- Weekdays: 10:00–20:00
- Saturdays: 10:00–15:00
- Sundays & Public Holidays: Closed
- Telegram: @katuo4141
- info@katuocloud.com