Nittei-san

Nittei-san is a straightforward, web-based scheduling tool that eliminates the back-and-forth of organizing group meetings. You create a calendar by pressing 'Start Scheduling!', input potential time slots, and share the unique URL with participants. There's no sign-up, login, or download required for anyone. Everyone who gets the link can immediately open it, select their name from a list, and mark the times they are free directly on the shared calendar. The tool operates in real-time, so all changes are visible to everyone instantly, just like marking up a physical whiteboard together.

What sets Nittei-san apart is its extreme simplicity and zero barrier to entry. Its interface is a familiar monthly calendar, making it intuitive for anyone to use. For users who log in with Google, it can optionally import and display their existing Google Calendar events as a faint background layer, helping them avoid conflicts when selecting availability. However, it is intentionally minimalist; it has no notifications, reminders, or automatic calendar syncing for finalized events.

This tool is perfect for anyone who needs to quickly coordinate a time for a meeting, study session, or social event with a group of people, especially when those people are outside your organization and don't use the same internal tools. It's ideal for freelancers coordinating with clients, teachers setting up parent-teacher conferences, or friends planning a get-together without the hassle of account creation.