CSV to ICS Calendar Converter

Convert CSV event lists to ICS calendar files with date, time, location, and description mapping.

Tested tool guide Tested browser tools Checked August 16, 2026

What CSV to ICS Calendar Converter does and how it behaves

An event table in CSV form becomes an iCalendar (.ics) file by assigning its columns to calendar fields such as date, time, location, and description. Each record supplies values for an event, while the mapping separates source column names from calendar meanings. The common trouble is ambiguous date and time text: a value such as 03/04/2026 or 9:00 has no universal locale or time-zone meaning. Check those interpretations before importing the file. Conversion stays in the browser, which matters when descriptions or locations are private.

How the result is produced

Map CSV columns

Start with a header row and one row per event. Assign the appropriate CSV columns to the converter's event fields instead of assuming a heading such as Start or Where has a fixed calendar meaning. The date, time, location, and description mappings determine which source values become those parts of each generated event.

Create iCalendar events

After mapping, the converter represents the rows as iCalendar content: a VCALENDAR container holding VEVENT components. Calendar applications interpret properties such as DTSTART for a start, LOCATION for a place, and DESCRIPTION for notes. CSV quoting is processed first, so commas, quotes, or line breaks inside text must be encoded as valid CSV fields.

Good uses

Turn a conference session spreadsheet into events that attendees can import into a calendar.
Convert a class, appointment, or shift list received as CSV into an ICS file.
Move dated event records from a spreadsheet export into software that accepts iCalendar imports.

Limits and checks

Dates such as 03/04/2026 are ambiguous unless the intended month and day order is clear.
A bare time such as 09:00 does not identify a time zone, so verify imported event times carefully.
Commas, double quotes, and line breaks inside a CSV value require valid CSV quoting or columns may be parsed incorrectly.

Common questions

Can I import the result into my calendar application?

Usually, if the application supports importing iCalendar files. The .ics extension conventionally identifies iCalendar data. Identical display is not guaranteed because calendar products can interpret or present descriptions, locations, and time information differently. Import a small test file first, especially before adding many events to a primary calendar.

Do my CSV headers have to match iCalendar property names?

No. This converter's mapping step associates source headings with event meanings, so a heading such as Venue can be selected as the event location. Mapping does not remove ambiguity inside the values themselves. Dates and times still need consistent, recognizable forms, and every event row needs the information required for its intended calendar entry.

References and verification

The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.