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Calendar File Viewer (ICS)
Open ICS calendar files and invites as an agenda, search them, and export to CSV, JSON or Markdown.
Free, no uploads, no sign-up. Runs 100% in your browser.
How Calendar File Viewer (ICS) works
The calendar is read in your browser. Times are shown in your device time zone, and repeating events are listed once with their rule.
Input: ICS. Output: CSV, JSON, MD.
How to use Calendar File Viewer (ICS)
- Drop an ICS file.
- Search or filter upcoming and past events.
- Export as CSV, JSON or a Markdown agenda.
Tips
- Excel, ODS and CSV all work. Formulas are read as their last saved values.
- For CSV files with odd characters, save them as UTF-8 first.
Calendar File Viewer (ICS) FAQ
- Are my files uploaded?
- No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
- Is it free? Are there limits or watermarks?
- Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
- Does it work offline?
- Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.
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