iCal Parser Parse iCalendar (.ics) files and display event details in a readable format.

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iCal Parser

Parse iCalendar (.ics) files and display event details in a readable format.

Paste .ics content

Paste the content of an iCalendar (.ics) file.

Parse events

Click Parse to extract event details.

View events

See all events with their details in a readable format.

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What Is iCal Parser?

iCal Parser reads and displays the contents of iCalendar (.ics) files in a human-readable format. It extracts VEVENT components and displays key properties including summary (title), dates, location, description, organizer, and UID. The parser handles RFC 5545 line folding (continuation lines), iCal escape sequences, and both DATE and DATETIME value types. Multiple events in a single .ics file are all extracted and displayed.

Why Use iCal Parser?

Reads all VEVENT components from .ics files.
Handles RFC 5545 line folding and escape sequences.
Supports both DATE and DATETIME value types.
Displays events in a clean, card-based layout.

Common Use Cases

Calendar Debugging

Inspect .ics file contents when calendar events are not displaying correctly.

Event Review

View event details from .ics files received by email without importing them.

Data Extraction

Extract event information from .ics files for documentation or reports.

Development Testing

Verify .ics file generation in calendar application development.

Technical Guide

The parser implements key aspects of RFC 5545 iCalendar parsing. Line unfolding is handled first: lines beginning with a space or tab are concatenated with the previous line, as per the specification.

It scans for BEGIN:VEVENT and END:VEVENT markers to identify individual events. Within each event, property lines are split at the first colon to separate the property name (with any parameters) from the value.

Date parsing handles both DATE (YYYYMMDD) and DATETIME (YYYYMMDDTHHMMSS) formats, converting them to human-readable strings. The parser strips parameters from property names (e.g., DTSTART;VALUE=DATE becomes DTSTART).

iCal escape sequences are unescaped:
→ newline, \, → comma, \; → semicolon, \\ → backslash.

Tips & Best Practices

1
Paste the entire .ics file content including BEGIN:VCALENDAR and END:VCALENDAR.
2
Multiple events in one file are all extracted and displayed.
3
Date formats are automatically converted to human-readable strings.
4
iCal escape sequences (\n, \,) are automatically processed.

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Frequently Asked Questions

Q What event details can I see from an .ics file?

Summary (title), start date, end date, location, description, organizer, and UID are extracted and displayed.

Q Does it handle recurring events?

RRULE properties are recognized but not expanded into individual occurrences.

Q Can I upload a .ics file?

Currently, paste the file content. Use a text editor to open the .ics file and copy its contents.

Q What about timezone information?

VTIMEZONE components are not currently processed. Dates are displayed as they appear in the file.

Q Does it handle multiple events?

Yes, all VEVENT components in the .ics file are extracted and displayed.

About This Tool

iCal Parser is a free online tool by FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration or installation required.