Installation
CalendarKit offers two versions: Basic (free, open source) and Pro (premium features).
Basic (Free - Open Source)
Install directly from npm - no purchase needed! Includes month, week, and day views with event management.
- ✓ Month, Week, Day views
- ✓ Event creation & editing
- ✓ Calendar filtering
- ✓ Full TypeScript support
- ✓ MIT License
Pro (Premium)
After purchase, you'll receive access to a private GitHub repository with full source code.
- ✓ Everything in Basic
- ✓ Drag & drop events
- ✓ Event resizing with 15-min snapping
- ✓ Agenda & Resource views
- ✓ Dark mode & i18n
- ✓ Timezone support
- ✓ Recurring events (RRULE)
- ✓ Event reminders & notifications
- ✓ ICS import/export
- ✓ Context menus (right-click)
- ✓ Mobile swipe gestures
- ✓ Skeleton loading & empty states
- ✓ Event attachments & guests
- ✓ Lifetime updates
# Basic (Free - Open Source)
# Install from npm - no purchase needed!
npm install calendarkit-basic
# or
yarn add calendarkit-basic
# or
pnpm add calendarkit-basic
# Pro (After Purchase)
# You'll receive access to our private GitHub repository.
# Clone the repository using your GitHub account:
git clone https://github.com/Zesor/pro-scheduler.git
# Install dependencies
cd pro-scheduler
npm install
# Run the development server
npm run devBasic Usage
The BasicScheduler component provides essential calendar functionality with month, week, and day views.
import { BasicScheduler } from 'calendarkit-basic';
import { CalendarEvent, ViewType } from 'calendarkit-basic';
import { useState } from 'react';
export default function MyCalendar() {
const [events, setEvents] = useState<CalendarEvent[]>([]);
const [view, setView] = useState<ViewType>('week');
const [date, setDate] = useState(new Date());
return (
<BasicScheduler
events={events}
view={view}
onViewChange={setView}
date={date}
onDateChange={setDate}
onEventCreate={(event) => {
setEvents([...events, { ...event, id: Date.now().toString() }]);
}}
/>
);
}Pro UsagePro
The ProScheduler includes all Basic features plus drag & drop, agenda view, resource view, timezone support, dark mode, i18n, and recurring events.
import { Scheduler } from '@/components/pro-scheduler';
import { CalendarEvent, ViewType, Resource } from '@/components/pro-scheduler/types';
import { useState } from 'react';
export default function MyCalendar() {
const [events, setEvents] = useState<CalendarEvent[]>([]);
const [view, setView] = useState<ViewType>('week');
const [date, setDate] = useState(new Date());
const [isDarkMode, setIsDarkMode] = useState(false);
return (
<Scheduler
events={events}
view={view}
onViewChange={setView}
date={date}
onDateChange={setDate}
isDarkMode={isDarkMode}
onThemeToggle={() => setIsDarkMode(!isDarkMode)}
onEventCreate={(event) => {
setEvents([...events, { ...event, id: Date.now().toString() }]);
}}
/>
);
}Events
Events are the core data structure in CalendarKit. Each event must have a unique ID, title, start, and end date.
interface CalendarEvent {
id: string; // Unique identifier
title: string; // Event title
start: Date; // Start date/time
end: Date; // End date/time
description?: string; // Optional description
color?: string; // Hex color (e.g., '#3b82f6')
allDay?: boolean; // Is all-day event
calendarId?: string; // Associated calendar ID
resourceId?: string; // For resource view (Pro only)
guests?: string[]; // Email addresses (Pro only)
attachments?: EventAttachment[]; // Files (Pro only)
recurrence?: { // Recurring rules (Pro only)
freq: 'DAILY' | 'WEEKLY' | 'MONTHLY' | 'YEARLY';
interval?: number;
count?: number; // Number of occurrences
until?: Date; // End date
};
}Required Fields
id- Unique identifier for the eventtitle- Display name of the eventstart- JavaScript Date object for start timeend- JavaScript Date object for end time
Calendars
Calendars allow users to organize and filter events by category. Each calendar has a color and can be toggled on/off.
const calendars = [
{ id: 'work', label: 'Work', color: '#3b82f6', active: true },
{ id: 'personal', label: 'Personal', color: '#10b981', active: true },
{ id: 'family', label: 'Family', color: '#8b5cf6', active: false },
];
<BasicScheduler
events={events}
calendars={calendars}
onCalendarToggle={(id, active) => {
setCalendars(cals =>
cals.map(c => c.id === id ? { ...c, active } : c)
);
}}
/>Event Handlers
CalendarKit provides callback functions for all user interactions. Use these to sync with your backend or state management.
<ProScheduler
events={events}
// Called when user clicks on an event
onEventClick={(event) => {
console.log('Event clicked:', event);
}}
// Called when user creates a new event
onEventCreate={(event) => {
setEvents([...events, { ...event, id: Date.now().toString() }]);
}}
// Called when user updates an existing event
onEventUpdate={(updatedEvent) => {
setEvents(events.map(e =>
e.id === updatedEvent.id ? updatedEvent : e
));
}}
// Called when user deletes an event
onEventDelete={(eventId) => {
setEvents(events.filter(e => e.id !== eventId));
}}
// Called when user drags an event to a new time (Pro only)
onEventDrop={(event, newStart, newEnd) => {
setEvents(events.map(e =>
e.id === event.id ? { ...e, start: newStart, end: newEnd } : e
));
}}
/>BasicScheduler Props
Complete reference of all props available in BasicScheduler.
// BasicScheduler Props
interface BasicSchedulerProps {
// Data
events?: CalendarEvent[];
calendars?: Calendar[];
// View Control
view?: 'month' | 'week' | 'day';
onViewChange?: (view: ViewType) => void;
date?: Date;
onDateChange?: (date: Date) => void;
// Event Handlers
onEventClick?: (event: CalendarEvent) => void;
onEventCreate?: (event: Partial<CalendarEvent>) => void;
onEventUpdate?: (event: CalendarEvent) => void;
onEventDelete?: (eventId: string) => void;
onCalendarToggle?: (calendarId: string, active: boolean) => void;
// Customization
theme?: CalendarTheme;
locale?: Locale;
className?: string;
readOnly?: boolean;
isLoading?: boolean;
// Custom Rendering
renderEventForm?: (props: EventFormProps) => React.ReactNode;
}| Prop | Type | Default | Description |
|---|---|---|---|
| events | CalendarEvent[] | [] | Array of events to display |
| view | 'month' | 'week' | 'day' | 'week' | Current calendar view |
| date | Date | new Date() | Currently focused date |
| calendars | Calendar[] | undefined | Calendar categories for filtering |
| locale | Locale | undefined | date-fns locale for date formatting |
| readOnly | boolean | false | Disable event creation/editing |
| isLoading | boolean | false | Show loading state |
BasicScheduler Views
Month View
Traditional calendar grid showing all days in the current month. Events are displayed as colored bars.
Week View
7-day view with hourly grid. Shows event duration visually. Virtualized for performance.
Day View
Single day view with detailed hourly breakdown. 15-minute time slots for precise scheduling.
ProScheduler PropsPro
ProScheduler extends BasicScheduler with additional features. All Basic props are available plus:
// ProScheduler Props (includes all BasicScheduler props)
interface ProSchedulerProps extends BasicSchedulerProps {
// Additional Views
view?: 'month' | 'week' | 'day' | 'agenda' | 'resource';
resources?: Resource[];
// Drag & Drop
onEventDrop?: (event: CalendarEvent, start: Date, end: Date) => void;
onEventResize?: (event: CalendarEvent, start: Date, end: Date) => void;
// Timezone
timezone?: string;
onTimezoneChange?: (timezone: string) => void;
// Theme
isDarkMode?: boolean;
onThemeToggle?: () => void;
// i18n
language?: 'en' | 'fr';
onLanguageChange?: (lang: 'en' | 'fr') => void;
translations?: Partial<CalendarTranslations>;
// Pro Features
eventTypes?: EventType[];
hideViewSwitcher?: boolean;
}| Prop | Type | Description |
|---|---|---|
| timezone | string | IANA timezone (e.g., 'America/New_York') |
| isDarkMode | boolean | Enable dark theme |
| language | 'en' | 'fr' | UI language for built-in translations |
| translations | CalendarTranslations | Custom translation overrides |
| resources | Resource[] | Resources for resource view |
| onEventDrop | function | Callback when event is dragged |
| onEventResize | function | Callback when event is resized |
| hideViewSwitcher | boolean | Hide the view toggle buttons |
ProScheduler ViewsPro
All Basic Views
Month, Week, and Day views with drag & drop support.
Agenda View Pro
List view showing upcoming events in chronological order. Perfect for quick overview.
Resource View Pro
Display events by resource (rooms, people, equipment). Ideal for booking systems.
ThemingPro
Customize colors, fonts, and border radius. Includes built-in dark mode support.
const customTheme = {
colors: {
primary: '#6366f1', // Primary accent color
secondary: '#ec4899', // Secondary color
background: '#ffffff', // Background color
foreground: '#0f172a', // Text color
border: '#e2e8f0', // Border color
muted: '#f1f5f9', // Muted backgrounds
accent: '#f1f5f9', // Accent backgrounds
},
fontFamily: 'Inter, sans-serif',
borderRadius: '0.75rem',
};
<ProScheduler
events={events}
theme={customTheme}
isDarkMode={isDarkMode}
onThemeToggle={() => setIsDarkMode(!isDarkMode)}
/>InternationalizationPro
Built-in support for English and French. Add custom translations for any language.
import { fr, de, es } from 'date-fns/locale';
// Custom translations
const customTranslations = {
today: 'Heute',
month: 'Monat',
week: 'Woche',
day: 'Tag',
createEvent: 'Ereignis erstellen',
editEvent: 'Ereignis bearbeiten',
delete: 'Löschen',
save: 'Speichern',
cancel: 'Abbrechen',
// ... more translations
};
<ProScheduler
events={events}
language="fr" // Built-in: 'en' | 'fr'
locale={fr} // date-fns locale for date formatting
translations={customTranslations} // Override specific strings
onLanguageChange={(lang) => setLanguage(lang)}
/>Timezone SupportPro
Display events in any timezone. Users can switch timezones on the fly.
<ProScheduler
events={events}
timezone="America/New_York" // IANA timezone
onTimezoneChange={(tz) => {
setTimezone(tz);
// Events will automatically adjust to new timezone
}}
/>
// Supported timezones include:
// - America/New_York
// - America/Los_Angeles
// - Europe/London
// - Europe/Paris
// - Asia/Tokyo
// - And all IANA timezone identifiersResource ViewPro
Display events by resource - perfect for room booking, team scheduling, or equipment allocation.
const resources = [
{ id: 'room-a', label: 'Conference Room A', color: '#3b82f6' },
{ id: 'room-b', label: 'Conference Room B', color: '#10b981' },
{ id: 'john', label: 'John Doe', color: '#f59e0b', avatar: '/avatars/john.jpg' },
];
const events = [
{
id: '1',
title: 'Client Meeting',
start: new Date(2025, 0, 15, 10, 0),
end: new Date(2025, 0, 15, 11, 0),
resourceId: 'room-a', // Link event to resource
},
];
<ProScheduler
events={events}
resources={resources}
view="resource"
/>Recurring EventsPro
Create events that repeat daily, weekly, monthly, or yearly. Supports count-based and date-based end rules.
const recurringEvents = [
{
id: '1',
title: 'Daily Standup',
start: new Date(2025, 0, 6, 9, 0),
end: new Date(2025, 0, 6, 9, 30),
recurrence: {
freq: 'DAILY',
interval: 1, // Every 1 day
count: 30, // Repeat 30 times
},
},
{
id: '2',
title: 'Weekly Team Meeting',
start: new Date(2025, 0, 6, 14, 0),
end: new Date(2025, 0, 6, 15, 0),
recurrence: {
freq: 'WEEKLY',
interval: 1,
until: new Date(2025, 12, 31), // End date
},
},
{
id: '3',
title: 'Monthly Report',
start: new Date(2025, 0, 1, 10, 0),
end: new Date(2025, 0, 1, 11, 0),
recurrence: {
freq: 'MONTHLY',
interval: 1,
count: 12,
},
},
];Recurrence Options
freq- Frequency: DAILY, WEEKLY, MONTHLY, YEARLYinterval- Repeat every N periods (default: 1)count- Total number of occurrencesuntil- End date for recurrence
Event ResizingPro
Drag the bottom edge of events to resize them directly in the week and day views. Events snap to 15-minute intervals with visual feedback during resize.
// Event resizing is enabled by default in ProScheduler
// Users can drag the bottom edge of events to resize them
<Scheduler
events={events}
// Called when user resizes an event by dragging
onEventResize={(event, newStart, newEnd) => {
setEvents(events.map(e =>
e.id === event.id ? { ...e, start: newStart, end: newEnd } : e
));
}}
/>
// The ResizableEvent component handles:
// - 15-minute snap intervals for precise scheduling
// - Visual feedback during resize (cursor, preview)
// - Minimum duration constraintsFeatures
- ✓ Drag bottom edge to resize events
- ✓ 15-minute snap intervals
- ✓ Visual feedback during resize
- ✓ Works in Week and Day views
Notification RemindersPro
Add reminder notifications to events with predefined intervals. Users can set multiple reminders per event.
// Events can have multiple reminders
interface EventReminder {
id: string;
minutes: number; // Minutes before event
type: 'notification' | 'email';
}
const event: CalendarEvent = {
id: '1',
title: 'Team Meeting',
start: new Date(2025, 0, 15, 14, 0),
end: new Date(2025, 0, 15, 15, 0),
reminders: [
{ id: 'r1', minutes: 15, type: 'notification' }, // 15 min before
{ id: 'r2', minutes: 60, type: 'email' }, // 1 hour before
],
};
// Built-in reminder options in EventModal:
// - 5 minutes before
// - 10 minutes before
// - 15 minutes before
// - 30 minutes before
// - 1 hour before
// - 1 day beforeReminder Options
- ✓ 5, 10, 15, 30 minutes before
- ✓ 1 hour before
- ✓ 1 day before
- ✓ Multiple reminders per event
ICS Import/ExportPro
Import and export calendar events in the standard ICS format. Compatible with Google Calendar, Apple Calendar, Outlook, and more.
import { generateICS, parseICS } from '@/lib/ics';
// Export events to ICS file
const handleExport = () => {
const icsContent = generateICS(events, calendars);
const blob = new Blob([icsContent], { type: 'text/calendar' });
const url = URL.createObjectURL(blob);
const link = document.createElement('a');
link.href = url;
link.download = 'calendar.ics';
link.click();
};
// Import events from ICS file
const handleImport = async (file: File) => {
const text = await file.text();
const importedEvents = parseICS(text);
setEvents([...events, ...importedEvents]);
};
// Supports:
// - Recurring events (RRULE)
// - All-day events
// - Event attachments
// - Multiple calendarsSupported Features
- ✓ Full ICS generation and parsing
- ✓ Recurring events support
- ✓ All-day events
- ✓ Attachments support
- ✓ Import/Export buttons in Sidebar
Mobile Swipe GesturesPro
Navigate between dates with intuitive swipe gestures on mobile devices.
// Swipe gestures are automatically enabled on touch devices
import { useSwipeGesture } from '@/hooks/useSwipeGesture';
// The hook provides swipe detection with configurable threshold
const { swipeDirection, swipeHandlers } = useSwipeGesture({
threshold: 50, // Minimum swipe distance in pixels
onSwipeLeft: () => navigateToNextPeriod(),
onSwipeRight: () => navigateToPreviousPeriod(),
});
// Usage in custom component
<div {...swipeHandlers}>
<CalendarContent />
</div>
// Built into ProScheduler:
// - Swipe left: Go to next week/month/day
// - Swipe right: Go to previous week/month/day
// - Works in all calendar viewsFeatures
- ✓ Swipe left/right to navigate dates
- ✓ Configurable swipe threshold (default: 50px)
- ✓ Works across all views
- ✓ useSwipeGesture hook for custom implementations
Loading States & Empty StatesPro
Beautiful skeleton loading animations and empty state displays for a polished user experience.
// Show loading skeleton
<Scheduler
events={events}
isLoading={isLoadingEvents} // Shows skeleton when true
/>
// Skeleton components available:
// - MonthViewSkeleton
// - WeekViewSkeleton
// - DayViewSkeleton
// - AgendaViewSkeleton
// Empty states are shown automatically when:
// - No events exist for the current view
// - All calendars are filtered out
// Customize empty state
<Scheduler
events={events}
emptyStateMessage="No meetings scheduled"
emptyStateAction={{
label: "Schedule a meeting",
onClick: () => openNewEventModal(),
}}
/>Skeleton Loading
Per-view skeleton loaders (Month, Week, Day, Agenda) that automatically display when isLoading is true.
Empty States
View-specific illustrations and messages with CTA button to create events.
Custom Event Form
Replace the built-in event form with your own custom component.
<ProScheduler
events={events}
renderEventForm={({ isOpen, onClose, event, initialDate, onSave, onDelete }) => (
<MyCustomModal isOpen={isOpen} onClose={onClose}>
<MyEventForm
event={event}
initialDate={initialDate}
onSave={(data) => {
onSave(data);
onClose();
}}
onDelete={event?.id ? () => {
onDelete?.(event.id);
onClose();
} : undefined}
/>
</MyCustomModal>
)}
/>Need help? Contact support
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