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ICS Calendar Viewer

.ics, .ical•100% Private (No Upload)

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v1.0.0Free · iCal ParserDocument Tools

ICS Viewer Online — Free iCalendar Event Reader | Online Gallery

View ICS calendar events in a month grid without calendar apps. Parse iCalendar .ics files and display events in a clean month-grid calendar with event details sidebar.

What is ICS Calendar Viewer and what does it do?

The ICS Calendar Viewer parses iCalendar .ics files and displays events in a month-grid calendar UI.

Supports VEVENT, VTODO, and VTIMEZONE components.

  • Display all VEVENT entries in an interactive month calendar grid.
  • Show event summary, start/end time, location, and description on click.
  • Navigate between months with Previous/Next buttons.
  • List all events in a sortable agenda view below the calendar.

How does ICS Calendar Viewer work?

Parses the iCalendar text format line by line, groups VEVENT/VTODO blocks, decodes DTSTART/DTEND values, and renders events into a dynamic month-grid React component.

100% private: all processing happens locally in your browser using client-side WebAssembly, WebCrypto, WebAudio, and HTML5 Canvas. Your files are never uploaded to any server.

Who needs ICS Calendar Viewer?

Project Managers

Preview exported calendar subscriptions and meeting schedules offline.

Developers

Validate iCalendar output from scheduling APIs and calendar integrations.

Supported file formats

ICS Calendar Event Viewer (.ics) opens and processes the following file extensions directly in your browser:

.ics.ical

How to use ICS Calendar Viewer — step by step

  1. 1

    Open ICS File

    Drop your .ics calendar export from Google Calendar or Outlook.

  2. 2

    Browse Month Grid

    Navigate months to see all events.

  3. 3

    Click Event

    Click any event to see full details including location and description.

Frequently asked questions

Does it support recurring events?

It shows all VEVENT entries including recurring event instances.

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