Observed arrival · 2026-10-31

CalendarLint checks the file before the import

calendarlint.com Visit website

Editorial interest 78/100 Selection signal · not a rating of the site

A browser-based ICS inspector that previews calendar events and checks for time, recurrence, syntax, and calendar-app compatibility issues.

Landing page captured for the 2026-10-31 issue.

For: People troubleshooting calendar imports and recurring events
Worth noticing: It separates VTIMEZONE, VEVENT, RRULE, EXDATE, syntax, and cross-client checks instead of presenting one generic validation pass.

Field notes

A displayed sample flags a weekly event crossing the Nov. 3, 2024 daylight-saving boundary and shows its RRULE and DTSTART lines. Another example links a mismatched EXDATE timezone identifier to a possibly ignored exclusion in Google Calendar. The page distinguishes plain-language explanations from expandable RFC 5545 details and presents repairs as optional, with an export action.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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Downloadable Baldness

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