Self-hosted · Multi-platform · You own your data
OKNoteA self-hostable, multi-platform note appBuild your own data hub
OKNote gives you the workspace you want for sensitive data — notes, mail and to-dos in one place, synced end-to-end in real time. Run it on your own NAS or any desktop, with built-in cloudflared domain mapping so you can reach your service from anywhere. It keeps growing — a workspace that's efficient and private.
- Every platform
- Mac · Win · iOS · Android · NAS
- Real-time sync
- Yjs CRDT · offline-first
- You own it
- AES-256 encryption at rest
Three modules, AI throughout
Notes, mail and tasks flow through one workspace — and AI speeds up every one of them.
Ideas land, structure grows
Switch freely between rich text and Markdown; mind maps, whiteboards and to-dos all in one place. It's Markdown + a resource folder underneath — open it without the app anytime.
- Rich text + Markdown dual mode
- Mind maps · whiteboards · to-dos
- End-to-end encrypted, offline-first sync
Your inbox is part of the flow
Send and receive with your own IMAP / SMTP accounts, summarize long threads in a click, and turn important mail into tasks or notes — no more app-switching.
- Your own IMAP / SMTP accounts
- Turn mail into a task or note
- Full-text search · offline reading
From idea to done, in one breath
Board, list and calendar views at will, with tasks naturally linked to your notes and mail. AI tracks progress and writes your weekly and monthly reports.
- Board · list · calendar views
- Cross-module links
- Reminders · recurrence · priority
Your data lives on your own server
No third-party cloud required. Run OKNote on devices you control — your data never leaves your hands.
Wherever you go, you stay connected
Bind your own domain — an encrypted tunnel and a dedicated address, out of the box.
One-click NAS deploy
fnOS / Synology / UGREEN / any Docker host — up and running in minutes.
Any desktop can be the server
Install on Mac / Windows and it serves instantly — the computer at home becomes your private cloud.
Built-in cloudflared mapping
No public IP, no port forwarding — reach your server securely from anywhere.
Bring your notes, mail and tasks back into your own hands
Download free and deploy in minutes. Your second brain — answering only to you.