01Ideas don't wait — luckily it's fast
OKNOTE 4.0Mind Sparks
From spark to draftConnect your ideas
Capture an idea. Let AI organize it, find connections, and turn scattered thoughts into a plan.
AI tidy-up · AI finds links · AI thinks with you · AI drafts for you
Watch the 4.0 launch film02Hands busy? Just say it
03You toss them in, it sorts them
04Ideas find each other
OKNOTE 4.0Release film
Watch ideas become something real
103 seconds to discover Mindsparks
Self-hosted · Multi-platform · You own your data
OKNoteYour data never leaves home.Build your own data hub
Notes, mail, tasks, and Mind Sparks in one workspace — running on your own NAS, end-to-end encrypted, reachable from anywhere.
- Every platform
- Mac · Win · iOS · Android · NAS
- Real-time sync
- Yjs CRDT · offline-first
- You own it
- AES-256 encryption at rest
Four modules, AI throughout
Notes, mail, tasks, and Mind Sparks flow through one workspace, with AI speeding up every module.
Notes
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.
AI summaries · AI meeting minutes · natural-language search
- Rich text + Markdown dual mode
- Mind maps · whiteboards · to-dos
- Meeting recording · AI-generated meeting minutes
- End-to-end encrypted, offline-first sync
Mail
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.
AI-drafted replies · one-click thread summaries
- Your own IMAP / SMTP accounts
- Turn mail into a task or note
- Auto-detect contacts · group management
- Full-text search · offline reading
- Translate incoming mail and replies
Tasks
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.
AI scheduling · auto weekly / monthly reports
- Board · list · calendar views
- Cross-module links
- Reminders · recurrence · priority
- AI voice task capture
Mind Sparks
Ideas flash by? Caught here.
Jot it down and AI tidies up; ideas cluster themselves in the graph, and a good chat turns them into a draft. From spark to shipped, end to end.
AI tidy-up · AI finds links · AI drafts for you
- Quick capture + voice — saved the moment you think
- 3D graph, connections surface themselves
- Chat it through, one tap to a project
- Ripe sparks settle into notes
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.
Your device
cloudflared encrypted tunnel
Your server
Your own domain → your dedicated address
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.
Take your notes, mail, tasks, and ideas back into your own hands
Free download, up and running in five minutes. Your second brain answers only to you.