FluidCalendar
FluidCalendar: A task-aware calendar for self-hosters who want automated scheduling across calendars. Ranked #68 of 193 in Calendar Apps by our editors (3.0/10); pricing: Open source; best for self-hosters wanting automated task scheduling.
At a glance
- Editor score3.0 / 10
- PricingOpen source
- Best forSelf-hosters wanting automated task scheduling
- Paid from$200 one-time
- Facts checked22 Sep 2026
Where it wins
- Automatic scheduling weighs availability, deadlines, priorities, and energy preferences.
- Syncs Google Calendar, Outlook/Microsoft 365, CalDAV, and task services.
- Docker and PostgreSQL support enables self-hosted deployment.
Where it doesn't
- The Lifetime Subscription costs $200 one-time, creating a high upfront commitment.
- Native mobile apps, scheduling links, and video meetings are not part of the stated offer.
- Beta positioning may not suit teams seeking a mature production option.
Our verdict on FluidCalendar
FluidCalendar is an open-source calendar and task-scheduling application for people managing multiple calendars and competing priorities. Its central feature automatically places tasks into available time using deadlines, priorities, energy preferences, working hours, buffers, and conflicts. The product also combines calendar views, recurring tasks, project organization, focus mode, and task synchronization, making it a fit for self-hosters and individuals who want scheduling and task management in one workspace.
The available Lifetime Subscription costs $200 USD one-time and includes early access to the beta, premium features, and lifetime access. That structure is straightforward, but it requires a substantial upfront payment rather than a recurring monthly commitment. The scheduling engine is the main point of differentiation: it is designed to turn task constraints and personal working preferences into calendar placements. Focus mode adds a timer and quick actions, while Kanban and list views give projects a separate organizational layer. Buyers who mainly need a simple calendar may find this broader task-planning approach unnecessary.
FluidCalendar connects with Google Calendar, Outlook/Microsoft 365, and CalDAV, and it supports two-way synchronization with Google Tasks and Outlook To Do. Docker and PostgreSQL self-hosting provide a deployment path for users who want control over their environment, while a managed SaaS option is also presented. The current product presentation centers on beta access, so organizations seeking a mature, broadly packaged calendar service may prefer an established alternative. Self-hosters and users with complex priorities should consider FluidCalendar; buyers focused on mobile-first access, meeting workflows, or a lower upfront price should look elsewhere.
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FluidCalendar pricing
All 1 FluidCalendar plans and prices →
FluidCalendar fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | $200 one-time |
| Shared calendars | Yes |
| Time blocking | Yes |
| Scheduling links | Not verified |
| Calendar sync | Not verified |
| Mobile apps | Not verified |
| Video meeting support | Not verified |
| Deployment | Cloud, Self-hosted |
| Support | |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 5 integrations: Google Calendar, Outlook/Microsoft 365, CalDAV, Google Tasks, Outlook To Do |
| Pricing | Open source (source) |
| Website | fluidcalendar.com |
| Facts checked | 22 Sep 2026 |
FluidCalendar integrations
FluidCalendar lists 5 integrations on its own site.
- Google Calendar
- Outlook/Microsoft 365
- CalDAV
- Google Tasks
- Outlook To Do
Alternatives to FluidCalendar
- Google CalendarA versatile calendar for personal schedules and Google Workspace collaboration.9.4
- Microsoft OutlookA flexible calendar choice for people and teams already working in Microsoft’s ecosystem.9.2
- Zoho CalendarA low-cost calendar with booking, sync, room reservations, and broad integrations.9.1
See all FluidCalendar alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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