ICS File Editor
Edit and modify your ICS (iCalendar) files with ease. Add, update, or remove events from existing calendar files.
Drop your ICS file here or click to browse
Supports .ics files from any calendar application
Powerful Editing Features
✏️Edit Events
Modify existing events including titles, dates, locations, descriptions, and all other calendar properties with an intuitive interface.
➕Add Events
Create new events and add them to your existing calendar file. Set all properties including recurrence rules and timezone information.
🗑️Remove Events
Delete unwanted events from your calendar file. Bulk delete multiple events or remove individual events selectively.
📋Duplicate Events
Copy existing events and create duplicates with modified properties. Perfect for creating similar events with small changes.
🔍Search and Filter
Find specific events quickly using search and filtering options. Filter by date range, location, organizer, or any event property.
💾Real-time Preview
See your changes in real-time with live preview. Review your modifications before saving to ensure everything looks perfect.
What You Can Edit
Event Properties
- •Basic Info: Title, description, location, status
- •Date & Time: Start/end dates, timezone, all-day events
- •Organizer: Event organizer and contact information
- •Categories: Event classification and custom tags
Advanced Features
- •Recurrence: Repeating events and exception rules
- •Attendees: Participant lists and RSVP status
- •Reminders: Alarm settings and notification times
- •Custom Fields: Additional properties and metadata
Perfect for These Scenarios
Event Updates
Update meeting times, locations, or details without recreating the entire calendar file from scratch.
Calendar Cleanup
Remove outdated events, fix formatting issues, or merge duplicate entries in your calendar files.
Bulk Modifications
Make the same changes to multiple events at once, such as updating locations or adding categories to all events.
Data Migration
Prepare calendar files for migration between different systems by adjusting format-specific requirements.
Error Correction
Fix corrupted or improperly formatted calendar files that won't import correctly into calendar applications.
Calendar Merging
Combine events from multiple calendar files into a single unified calendar while removing conflicts and duplicates.
Compatible Calendar Sources
Google Calendar
Edit ICS files from Google Calendar
Outlook
Modify Microsoft Outlook calendar files
Apple Calendar
Edit macOS and iOS Calendar files
Other Apps
Any iCalendar-compatible application
How to Use the ICS Editor
Upload ICS File
Drag and drop or select your ICS file to edit
View Events
Browse and review all events in your calendar
Make Changes
Edit, add, remove, or modify events as needed
Download Result
Save your edited ICS file to your device
Frequently Asked Questions
What ICS files can I edit?
Any standard ICS (iCalendar) file from Google Calendar, Outlook, Apple Calendar, or other calendar applications that follow the iCalendar specification.
Can I edit large calendar files?
Yes! The editor efficiently handles large ICS files with hundreds or thousands of events. All processing happens in your browser for optimal performance.
Can I undo my changes?
The editor maintains a history of your changes and provides undo/redo functionality. You can also revert to the original file at any time.
Are my calendar files secure?
Absolutely! All processing happens in your browser. Your ICS files never leave your device, ensuring complete privacy and data security.
Can I add recurring events?
Yes! The editor supports creating and modifying recurring events with complex recurrence rules including daily, weekly, monthly, and yearly patterns.
Will the edited file work in my calendar app?
Yes! The editor maintains full iCalendar standard compliance, ensuring your edited files work perfectly in all major calendar applications.