2026 App web · Activo

Calendar Event Generator

Browser-based ICS event builder with full RFC 5545 compliance — recurrence rules, attendees, reminders, ~50 templates, 50-level undo. Works fully offline as a PWA.

React 19 TypeScript Vite Tailwind CSS 4 Zustand Dexie date-fns PWA

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A browser-only ICS calendar event builder with the level of detail you actually need for real-world events — recurrence rules (RRULE), attendees with statuses, reminders, location with maps integration, attachments. Exports to Apple Calendar, Google Calendar, Outlook — anything that speaks RFC 5545.

Notable bits:

~50 prebuilt event templates (meeting, birthday, doctor’s appointment, workout block, …) you can adapt instead of starting from a blank form.
50-level undo/redo powered by an immutable event store — important for “wait, what did I just delete?” moments.
Multi-select export, so you can build several events and send them as one .ics.
Fully client-side: no server, no analytics, no cookies. PWA — installable, works offline.
Three locales (English, Spanish, Romanian).