ICS to CSV Converter
Export iCalendar events as CSV rows. Review recorded dates, time-zone identifiers, descriptions and recurrence rules without expanding repeating events.
Open toolCSV to ICS Converter
Build an iCalendar file from a CSV event list. Use UTC timestamps or all-day dates, review each event and import the downloaded file into your calendar.
Free to useNo sign-upRuns in your browser
Enter your details
Enter the inputs, then select Build calendar file.
Your result
Enter your details
Result will appear here
How CSV to ICS Converter works
Validate summary, start and end columns, escape event text and fold calendar lines.
Processing uses bundled libraries in this browser. The download contains the generated source or document, rather than a link to a conversion service.
How to build calendar file
Start with the supported input, then check the generated result.
Enter the source details
Use Event CSV. The form starts with an example you can replace.
Input and settings
Check the input settings
Read the supported input format and size limits before submitting.
Tool result
Review and save the output
Review a downloadable iCalendar file of UTC or all-day events. Download the generated file and check it in the application where you plan to use it.
Review the details
When to use CSV to ICS Converter
These workflows use the formats and behavior supported by this implementation.
Import a list of UTC events
Use ISO timestamps ending in Z for UTC event times. The form rejects ambiguous local timestamps instead of guessing a time zone.
Create all-day calendar entries
Use YYYY-MM-DD dates for all-day events. The end date is exclusive, following the calendar file convention.
Move event descriptions from a sheet
Descriptions and locations are escaped and long lines are folded. Importing the file adds calendar data; it does not send meeting invitations.
What the output contains
Keep the output format and conversion policy in view.
A downloadable iCalendar file of UTC or all-day events. Validate summary, start and end columns, escape event text and fold calendar lines.
Compare the result with the original before replacing a source file. Conversion limits are listed below.
Supported input and limits
Check these conditions before relying on the result.
Uses ISO UTC timestamps ending in Z or YYYY-MM-DD all-day dates. No local time zones or recurring events. All-day end dates are exclusive. Up to 5,000 events; importing does not send invitations.
Input and results are not stored after leaving or reloading. Keep the original and download any output you need.
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Generate the supported output, review it, and save a copy for your next step.
CSV to ICS Converter: common questions
Answers about using CSV to ICS Converter and understanding its results.
What does this tool produce?
It produces a downloadable iCalendar file of UTC or all-day events. Uses ISO UTC timestamps ending in Z or YYYY-MM-DD all-day dates. No local time zones or recurring events. All-day end dates are exclusive. Up to 5,000 events; importing does not send invitations.
Is my input uploaded?
Processing runs in this browser with local bundled libraries. No input is sent to a conversion server. Download your result before leaving the page.