ICS Calendar Viewer
Read events in their recorded time zones. Recurrence rules are summarized; repeated instances are not expanded.
Runs in your browser — nothing is uploadedChoose a file to begin.
How to use ICS Calendar Viewer
- Choose a local file, up to 10 MB.
- Inspect the preview and use the available local controls.
- Close the page when finished. Files are never uploaded or automatically saved.
Questions
Does this upload or store my files?
No. Parsing and previews stay in this browser tab. Contents and filenames are not sent to analytics, and no server or cookie storage is used.
What are the limits?
Up to 5,000 events. UTC, floating and TZID times retain their recorded labels without time-zone conversion. DTEND is exclusive, including the final date for all-day events. Recurrence exceptions are shown as individual event records.