Skip to main content

Convert · browser workspace

CSV to ICS

Create calendar events from CSV titles and explicit dates. Process locally in your browser with HappyCSV.

Preparing your private workspace…
How to use this tool

Quick start

Built for create calendar events from csv titles and explicit dates.

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

Output: Use YYYY-MM-DD for all-day dates, or ISO timestamps with Z or a timezone offset. An all-day end date is exclusive. Ambiguous dates are rejected.

  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 CSV to ICS

  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?

  • ✓Create calendar events from CSV titles and explicit dates.
  • ✓Use YYYY-MM-DD for all-day dates, or ISO timestamps with Z or a timezone offset. An all-day end date is exclusive. Ambiguous dates are rejected.
  • ✓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?

Use YYYY-MM-DD for all-day dates, or ISO timestamps with Z or a timezone offset. An all-day end date is exclusive. Ambiguous dates are rejected.

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.