smallutils.co.technology
Calendar & Events
Read, create, check and transform your calendars. Focused tools, processed locally in your browser.
Understand
ICS Viewer
Read events, dates, recurrence and every original property before importing a calendar.
ICS Validator
Find common calendar errors and formatting warnings with source lines and explanations.
Timezone Inspector
Compare source dates, timezone definitions, UTC and device time without guessing missing offsets.
Recurrence Viewer
Preview the next 10 or 20 recurring dates, including exclusions and changed instances.
Transform
ICS → Calendar
Upload an .ics file, pick the events you want, and export a calendar-ready file —
processed locally in your browser.
ICS Splitter
Split a calendar into one .ics file per event. Download and open events individually, right from your browser.
ICS Merger
Combine several calendars into one file while preserving event details, alarms and timezones.
ICS Cleaner / Fixer
Fix common calendar formatting issues and review every repair before downloading.
ICS Deduplicator
Review identical event copies and choose which to remove, while keeping conflicting revisions.
ICS Privacy Cleaner
Remove selected attendees, notes, locations and other fields before sharing a calendar copy.
Create
Create Calendar Event
Create an event, review its details, then download ICS or open it in Google Calendar or Outlook.
Add to Calendar Button Generator
Generate copyable HTML links for your own website, with an optional hosted ICS link.
CSV → Calendar
Map CSV columns, review and edit events, then download a calendar.