Calendar Pro

A modern, high-performance calendar for Chrome with ISO week numbers, popup and sidebar views.

Calendar Pro – Modern Calendar, Multi-Feed Sync & Side Panel Calendar Pro is a lightning-fast, beautifully designed calendar extension for Google Chrome. Seamlessly view, organize, and sync your schedule in both a persistent Chrome Side Panel and a quick-access toolbar popup. Subscribe to and synchronize multiple calendar feeds simultaneously — including Google Calendar, Microsoft Outlook / Office 365, Apple iCloud, and University / School schedules — with unified 1-click synchronization. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✨ KEY FEATURES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📅 DUAL VIEW EXPERIENCE • Persistent Side Panel: Keep your schedule visible alongside your web browsing without switching tabs or windows. • Quick Toolbar Popup: Instant monthly calendar overview with day inspector and fast event creation. 🔄 UNIVERSAL MULTI-SOURCE CALENDAR SYNC • Connect unlimited external iCalendar (.ics) feeds. • Sync Microsoft Outlook, Google Calendar, Apple iCloud, and Canvas LMS / University schedules in parallel. • Automatic background aggregation with one-click refresh from any view. • Custom categorization and color tagging per calendar source. 📊 3 POWERFUL CALENDAR VIEWS • Month View: Full 42-day fluid matrix with multi-event badges and ISO week numbers. • Week View: 7-day hourly timeline with auto-scrolling to the current time indicator. • Day View: Detailed single-day agenda with exact time slots and category labels. 🌐 ISO 8601 WEEK NUMBERS & CUSTOM LOCALIZATION • Built-in ISO week number column (Week 1 – Week 53). • Choose Monday or Sunday as the first day of the week. • 12-hour (AM/PM) and 24-hour time format options. • Fully localized in 9 languages: English, Norwegian (Norsk Bokmål), German (Deutsch), Spanish (Español), French (Français), Swedish (Svenska), Danish (Dansk), and Arabic (العربية with complete RTL support). 🎨 LINEAR & CRON INSPIRED DESIGN • High-contrast Dark Mode and clean, crisp Light Mode. • Fluent micro-interactions, smooth transitions, and keyboard navigation. • Responsive fluid layout adapting to any sidebar width. 🔒 100% PRIVATE & OFFLINE-READY • No user accounts, logins, or external servers required. • Your calendar data and subscription feeds are stored securely in your browser's local sync storage. • Zero telemetry, zero tracking, zero ads. 📁 BACKUP & PORTABILITY • Full .ICS file import and export. • Easily backup and restore your complete schedule anytime. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⌨️ KEYBOARD SHORTCUTS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ • [ M ] – Month View • [ W ] – Week View • [ D ] – Day View • [ T ] – Jump to Today • [ ← / → ] – Previous / Next Month/Week/Day • [ N ] – Create New Event ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🚀 GET STARTED ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1. Click "Add to Chrome". 2. Pin Calendar Pro to your toolbar or open the Chrome Side Panel. 3. Add your favorite Google, Outlook, or University calendar feeds in Settings, and enjoy the ultimate productivity calendar!