One workspace.
Everything in its place.
Notes, calendar, reminders, and more — all stored locally on your device. No cloud required. No compromises on privacy.
Free forever for the local-first version · macOS, Windows, Linux
Everything you need
Six features. One workspace. Zero compromise.
Powerful tools that work together seamlessly. Designed to feel native on every platform — and to disappear when you’re in flow.
Rich Notes
A powerful editor with Markdown, wiki-links, backlinks, and instant full-text search.
Calendar
Track your schedule with a native-feeling calendar. Create events, set reminders, stay organized.
Reminders & Todos
Never forget a task. Reminders with due dates, recurring schedules, and missed-window grace.
Plugin System
Extend Knosys with weather, maps, and community plugins — or write your own with the Plugin API.
Spotlight Search
Find anything instantly. One global search across notes, events, and reminders.
Optional Cloud Sync
Keep your data local — or sync across devices with end-to-end encrypted cloud sync.
Designed for focus
A workspace that gets out of your way.
Restrained chrome. Native-feeling motion. Three density modes so the UI fits the way you work.
Your workspace, on your terms.
Free forever for the local-first version. Optional cloud sync when you need it. Nothing to give up. Everything to gain.
macOS · Windows · Linux