ICS Calendar Conflict Checker
Find overlaps between explicit calendar events while distinguishing timezone groups and unsupported recurrence.
Ready. Try the example or paste your input.
Results
Run the tool to see results.
Processed output preview
Using ICS Calendar Conflict Checker
Find overlaps between explicit calendar events while distinguishing timezone groups and unsupported recurrence.
- Paste ics calendar or open a local text file. Use the ready example to learn the workflow.
- Adjust the tool options, run the review and inspect the findings. Search the results and change the row view when needed.
- Download the processed output or complete JSON report. Keep a project file to reopen your inputs and settings later.
Example
Load the included example, then run the tool. Explicit DTSTART/DTEND only; recurrences, cross-timezone conversion and DST transitions are not resolved.
Questions & answers
What does this tool do?
Find overlaps between explicit calendar events while distinguishing timezone groups and unsupported recurrence.
What are the limits of its results?
Explicit DTSTART/DTEND only; recurrences, cross-timezone conversion and DST transitions are not resolved.
Can I save or reopen my work?
Save project downloads inputs and options as JSON. Open project restores them; run the tool again for fresh results. Projects and reports may contain private source data, so store and share them carefully.
How much data can I use?
Each input supports up to one million characters and 2 MiB file uploads. Results support up to 20,000 rows; tables show 100 at a time. Large or complex inputs may need to be split.
Is input uploaded or executed?
Processing is local in your browser. This tool does not execute source scripts, follow links or contact external services. Site advertising and optional analytics are described in the privacy policy.
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