What It Does
Nittei-san is a simple, shareable calendar tool that lets multiple people coordinate schedules in real-time. No account, login, or download is required-just share a link, and everyone can mark their availability.
It’s perfect for quick meetings, events, or collaborative planning without the usual friction of email chains or app sign-ups.
Key Features
- Real-Time Collaboration: Everyone can add their availability simultaneously, like a shared whiteboard.
- Instant Use: Start scheduling immediately—no registration or login needed.
- Google Calendar Sync: Import your calendar to reference existing events while scheduling.
- Intuitive Interface: Easy for beginners, familiar calendar view makes adding availability simple.
- Shareable URL: Send a link to participants anywhere in the world for seamless coordination.
- Copy Available Slots: Quickly share selected time options in text form.
Who Is Nittei-san For?
- Teams & Small Groups: Perfect for organizing meetings or events without everyone needing the same apps.
- Freelancers & Clients: Quickly find mutually convenient times for calls or consultations.
- Friends & Families: Coordinate gatherings, parties, or casual meetups effortlessly.
- Event Organizers: Easily manage RSVPs and availability for workshops or classes.
Final Thoughts
Nittei-san shines with simplicity and speed. No downloads, accounts, or complicated setups-just a shareable calendar that works instantly.
For anyone who wants stress-free scheduling with real-time updates, this tool is a no-brainer. Try it and streamline your planning today.



