OneCalendar
onecalendar.nlView and share appointments from multiple calendar providers in one cross-device app.
View and share appointments from multiple calendar providers in one cross-device app.
A budget calendar that projects balances from scheduled bills and income
Run a health practice from a calendar that connects patient records, online bookings, and reminders.
Visual team time tracking with calendar timesheets, project budgets, and team reporting.
Self-host a tag-based time tracker with calendar and dashboard views.
Add event calendars, sharing, and availability checks to a Nextcloud workspace.
Self-host an appointment booking page and team calendar, or use the project’s managed hosting.
Bring work and personal calendars together, create events in natural language, and share bookable openings.
A personal task timer with calendar logs, goal reports, and exports for reviewing where time goes.
Publish a booking page where clients can choose services and available appointment times.
Move between a live timer, a drag-and-drop calendar and a weekly timesheet.
Share group calendars so family, school, or hobby plans stay visible to everyone invited.
Personal finance registers with a bill calendar and offline option
Visual social scheduling with CSV batches and a reviewable content calendar
Share booking links with calendar sync, availability controls, and timezone-aware scheduling.
Share scheduling links, polls, and team availability with calendar conflict checks.
Track projects across spreadsheet, Kanban, Gantt, and calendar views with contextual team updates.
Pay-cycle expense records with a calendar and reviewable captured entries
A training calendar and workout log for athletes and coaches
Slack leave requests with team approvals and calendar coordination
An email and calendar app where AI agents handle email jobs you describe.
A simple free desktop notebook with safe saves, version history, folders, and a focus mode.
A free, open-source notebook for organizing notes in the browser or on desktop.
Write naturally by hand and add PDF pages to notes for markup.