Ical Viewer

A lightweight tool to view and validate ICS data from calendars for developers, admins, event planners, and testers needing quick ICS verification.

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About This Tool

The iCal viewer accepts ICS data from a URL or inline text and parses VEVENT components to surface key fields such as start and end times, summaries, and locations. It is designed for developers, admins, and QA teams that receive calendar exports or feed URLs and need a quick validation and extraction workflow.
Conceptually, ICS is treated as a structured feed where time zones are resolved from VTIMEZONE blocks and events are normalized into a machine-friendly representation. Recurrence rules (RRULE) can be expanded to show individual occurrences within a date window or preserved as RRULE properties for compact data. The tool supports multiple calendars in a single payload and can filter by date ranges to keep results focused.
Unique value comes from RFC 5545 compliant parsing, robust time zone handling, and flexible input methods that suit automation pipelines and data validation tasks. Use cases include calendar migration checks, integration testing for ICS feeds, and data extraction for reporting.

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How to Use

Provide inputs: choose ics_url or paste ics_data and, if needed, start_date/end_date.
Configure options: enable or disable RRULE expansion and set date window.
Run parsing: execute the tool to parse the ICS content.
Review outputs: review the structured events and meta fields; look for any parsing errors.
Export results: optionally export to JSON or CSV for automation or dashboards.

Frequently Asked Questions

Find Quick Answers

What inputs are supported?

The tool accepts ics_url and ics_data as optional inputs; at least one must be provided. Start_date and end_date can constrain the result window.

Can it expand recurring events?

Yes; you can enable recurrence expansion to generate individual occurrences within the specified date window. If disabled, events retain their RRULE properties only.

How are time zones handled?

Time zones are resolved from VTIMEZONE data when present; outputs use ISO 8601 with offsets. If no zone is defined, times default to UTC.

Can results be exported?

Yes; parsed events can be exported as JSON or CSV for use in automation, dashboards, or data validation workflows.

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