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Convert · browser workspace

ICS to CSV

Export calendar event records with original dates, recurrence rules, and time zones retained. Process locally in your browser with HappyCSV.

Preparing your private workspace…
How to use this tool

Quick start

Built for export calendar event records with original dates, recurrence rules, and time zones retained.

Everything runs in your browser, so you can test the workflow with sample data when available before using production files.

Output: One row per event record, without expanding recurrences. Original event text and timezone definitions are included; dates keep their source representation.

  1. 1Choose a supported file within the displayed limits.
  2. 2Review the supported format and configure the available options.
  3. 3Process locally, review the result, and download it.

How to ICS to CSV

  1. 1Choose a supported file within the displayed limits.
  2. 2Review the supported format and configure the available options.
  3. 3Process locally, review the result, and download it.

Why Use This Tool?

  • ✓Export calendar event records with original dates, recurrence rules, and time zones retained.
  • ✓One row per event record, without expanding recurrences. Original event text and timezone definitions are included; dates keep their source representation.
  • ✓Files are processed locally in this browser.
  • ✓Keep the source file and review the result before importing it elsewhere.

Frequently Asked Questions

What does this tool support?

One row per event record, without expanding recurrences. Original event text and timezone definitions are included; dates keep their source representation.

What are the processing limits?

Up to 100 MB per CSV, 20 MB per complex document; 250,000 rows, 1,000 columns, 2 million cells, and 128 MB output. Jobs stop after two minutes. Large files may need splitting.

Are my files uploaded?

No. File processing stays in your browser. Files are not automatically saved for the next visit.

Can I process multiple files?

This tool processes one file at a time.