Developer tool

CSV to ICS Converter

Convert a CSV list of events into an iCalendar (.ics) file you can import into Google Calendar, Apple Calendar and Outlook.

CSV ICS
PrivConvert
Privacy-first conversion
No files stored
In-memory processing
Deleted instantly
No sign-up needed

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About Converting CSV to ICS

CSV is a plain-text table format where each line is a row and commas separate columns. Its simplicity makes it the universal exchange format for data between spreadsheets, databases and code. When you need to move away from CSV, the usual reason is simple: no formatting, formulas or multiple sheets.

Converting your CSV spreadsheet to ICS solves that. ICS (iCalendar) is the universal calendar format for sharing events, invitations and schedules. Google Calendar, Outlook and Apple Calendar all import and export it. In practice you gain universal calendar exchange and supports recurring events and invites. PrivConvert runs the whole CSV-to-ICS conversion in server memory and deletes your file the instant the ICS is ready — nothing is stored, logged or reused.

When this conversion helps

  • You need universal calendar exchange
  • You need supports recurring events and invites
  • You need plain text
  • Sharing a CSV spreadsheet with someone whose software expects ICS

Tips for best results

  • After converting, open the ICS and skim the formatting — complex layouts occasionally need a small touch-up.
  • Files up to 250 MB are supported, and you can batch-convert several CSV files at once; each is processed privately and deleted immediately.

How to Convert CSV to ICS Online

Converting CSV files to ICS format is simple with PrivConvert. Our free online converter handles the entire process in your browser with no software installation required. Your files are processed securely in memory and never stored on our servers.

1
Upload your CSV file

Drag and drop your file into the upload area, click to browse your device, or paste a URL to a file hosted online. You can upload files up to 250 MB and batch convert up to 20 files at once.

2
Automatic conversion

Once uploaded, the conversion from CSV to ICS starts automatically. The process runs entirely in an isolated environment - your data never leaves the secure pipeline.

3
Download your ICS file

Your converted file is ready instantly. Click the download button to save it to your device. The file is deleted from memory immediately after download.

Why Choose PrivConvert?

Unlike other online converters that upload your files to remote servers, store them for days, and may use them for AI training or sell your data, PrivConvert was built with privacy as the foundation. Here's what makes us different:

Zero data retention

Files are processed in volatile memory (RAM) and immediately purged. Nothing is ever written to disk or backed up.

Encrypted transfers

All uploads and downloads are encrypted with TLS 1.3. Your files cannot be intercepted in transit.

No account required

Use any tool instantly without signing up, providing an email, or creating a profile. No tracking cookies, no user profiling.

Works on any device

Compatible with Windows, macOS, Linux, iOS, and Android. No plugins or desktop software needed - just a modern web browser.

CSV vs ICS - Format Comparison

FeatureCSVICS
File extension.csv.ics
Full nameComma-Separated ValuesiCalendar
EncodingTextText
EditableYesYes
Open standardYesYes
Supported by PrivConvertYes (as input)Yes (as output)
Privacy-safe conversionIn-memory, zero storage
Max file size250 MB per file
Batch supportUp to 20 files simultaneously

Trusted by Thousands of Users

PrivConvert processes thousands of file conversions every day. Our commitment to privacy and security has made us the go-to choice for professionals, developers, and privacy-conscious users worldwide.

250 MB Max file size
200+ Conversion tools
0 sec File retention
100% Free to use

Frequently Asked Questions

Which CSV columns are recognised?
Common headers are matched automatically (case-insensitive): Summary / Title, Start, End, Location and Description. Each row needs at least a title and a start date to become an event.
What date formats are supported?
Dates like 2026-01-31 (all-day) and 2026-01-31 14:30 or 2026-01-31T14:30:00 (timed), as well as 01/31/2026, are recognised. Rows without a readable start date are skipped.
Is it safe and private?
Yes. Every value is escaped per the iCalendar (RFC 5545) spec and stripped of control characters, so a cell can never inject extra events, and the file is processed entirely in memory and deleted the instant your download is ready.