Convert .ics ↔ CSV / JSON / PDF

Transform calendar data effortlessly: export ICS to spreadsheets or JSON for analysis, then reimport cleaned rows to regenerate production-ready .ics in seconds. Built for analysts and event aggregators who demand trust, speed, and clarity.

Ingest Calendar Data

Drop ICS or CSV to begin. Data stays on-device for total privacy.

Import .ics calendars Unlimited files • Auto timezone detection
Import CSV spreadsheets Auto-detect headers • Smart type hints
No datasets loaded yet.

Current datasets

    CSV Field Mapping

    Point each CSV column to an iCalendar field. Save presets for round-trip workflows.

    Mapping configuration

    Timezone & locale controls

    Event Preview & Exports

    Validate converted events before exporting to ICS, CSV, JSON, or PDF.

      Summary Start End Organizer Location

      Processing log

      About Convert .ics ↔ CSV / JSON / PDF

      Convert .ics ↔ CSV / JSON / PDF replaces clunky desktop utilities with a private, Kadence-inspired workspace tailor-made for analysts and event aggregators. The interface runs entirely in your browser, so sensitive attendee information never leaves your screen, while lightweight code keeps load times under a second on modern hardware. Minimalistic panels, soft shadows, and accessible typography keep your attention on the data instead of the tool.

      Unlike basic converters that only export in one direction, this toolkit handles the entire round-trip: upload legacy ICS files, export structured CSV or JSON for modelling, then feed cleaned rows back into the generator to produce production-ready .ics downloads. Built-in timezone normalization, UID preservation, and mapping presets guarantee consistent imports even when vendors use different spreadsheet headers.

      How to Use This Calendar Conversion Tool

      Drag an ICS or CSV file onto the workspace or use the upload buttons. ICS files are parsed instantly, with event counts logging in the activity console. CSV imports trigger a mapping assistant that lists every column detected and lets you point each one at the correct iCalendar field. Save that mapping as JSON to reuse it during the next bulk import.

      Choose the timezone to apply across events or stick with your browser’s local setting. The preview table updates as soon as mapping is applied, showing formatted start and end times so you can verify your data before exporting. Once satisfied, export to ICS, CSV, JSON, or the built-in PDF quick report. Hit “Re-import to Generator” to send the cleaned dataset straight back through the ICS builder without re-uploading.

      Expert Tips for Faster Results

      • Save separate presets for different vendors so you can remap columns with one click.
      • Use the PDF export to share a snapshot schedule with stakeholders who do not need raw data.
      • Round-trip cleaned CSV files back into ICS to fix typos or timezone mistakes in legacy calendars.
      • Keep the log console open while importing to catch formatting warnings early.

      FAQs

      Can I convert multiple ICS files at once?

      Yes. Drop any number of ICS files and the tool will merge them into a single dataset while tracking the original source for each event.

      How accurate is the CSV to ICS mapping?

      The mapping assistant auto-detects common calendar headers and lets you adjust them manually. Saved presets ensure future imports stay consistent.

      Does the converter support offline use?

      Yes. Once loaded in your browser, every conversion runs locally using vanilla JavaScript so you can disconnect from the internet without losing functionality.

       

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