CorrectICS

Fix broken calendar files automatically.

Validate for free. Autofix with Pro. Works with Google, Outlook, and Apple Calendar.

Try Free Validator See Pricing

Validate (Free)

Find what's wrong fast with detailed error guidance for every property.

Fix (Pro)

Download corrected ICS files instantly with Autofix—no manual edits required.

Compatible

Works across Google Calendar, Microsoft Outlook, and Apple Calendar clients.

Why CorrectICS?

Validate and automatically fix ICS files with logic tuned to real clients (Outlook, Google, Apple).

Simple API

Pro users can POST raw .ics with autofix=1 to get validated results and fixed calendars in one response. 

curl -X POST "https://api.correctics.com/api/validate?autofix=1" \
  -H "Authorization: Bearer $CORRECTICS_KEY" \
  -H "Content-Type: text/calendar" \
  --data-binary @meeting.ics

Privacy First

Processed in memory, not stored. Short logs with request IDs for support only.