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CSV to ICS

Convert a CSV appointment list to a calendar file (.ics) locally - ready to import into any calendar.

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Running locally on your device ...

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    No re-upload needed

    These tools accept .ICS - your file is handed over directly.

    Matches your result

    Matches your result

    Is my file uploaded?

    No. Everything runs in your browser - your file never leaves your device. How this is verifiable

    No upload100% local
    Your content stays with youno third-party access
    Hosted in GermanyGlobal Content Delivery
    Independently auditedTLS A+ · HTTP headers A+

    Appointment lists often arrive as a table - an export from event planning, a shift-schedule spreadsheet or a project timeline. Google Calendar, Outlook and Apple Calendar, however, import the iCalendar file (.ics), not CSV directly.

    This tool reads your CSV entirely locally in the browser and expects the columns summary, start, end, all_day, location, description, uid (missing columns simply stay empty; start/end as an ISO date or date-time). Each row becomes its own RFC 5545-compliant VEVENT block, all bundled into one .ics file.

    Nothing is uploaded - the conversion happens entirely locally, even for appointments with sensitive details. You can import the .ics file straight into your calendar.

    Specifications

    Specifications
    Input formatsCSV
    Auto-conversionZIP, XLSX, SQLite, DBF, VCF, ICS, DXF, GeoJSON
    Output formatICS
    Batch processingNo
    ProcessingLocally in your browser (JavaScript)
    File uploadNone

    In 3 steps

    1. Drop or pick your CSV file.
    2. The tool builds an appointment per row locally.
    3. Download and import the .ics file.

    Limitations: Expected columns: summary, start, end, all_day, location, description, uid. Each row becomes a single, non-recurring appointment - recurrence rules (RRULE) and reminders are not generated. A timestamp without a "Z" is written as a local (not timezone-converted) time. Very large lists need memory.

    FAQ

    Is my CSV uploaded?

    No. The calendar file is built entirely locally in the browser.

    Which columns must my CSV have?

    summary, start, end, all_day, location, description, uid - missing columns simply stay empty.

    How do I specify an all-day event?

    Set all_day to true and start as a plain date (YYYY-MM-DD) without a time.

    Are recurrence rules supported?

    No, every row becomes a single, non-recurring appointment.

    ICS to CSV instead?

    Yes, use the "ICS to CSV" tool.

    Related tools

    ICS to CSV · CSV to VCF · VCF to CSV · JSON to CSV · CSV to XML · Convert DATEV CSV · xDT to CSV