RENDEZVOUS — Optimal Meetup Finder

About

Rendezvous calculates the mathematically optimal meeting point for groups of 2–10 people, so nobody drives further than necessary.
Enter each person's starting location by typing an address, searching by city or zip code, or clicking directly on the map. Choose from three fairness algorithms — Efficient (minimize total miles), Balanced (reduce outliers), or Fair (minimize the longest trip) — and click Find Rendezvous.
Features:
• Up to 10 participants with color-coded map pins
• 3 optimization algorithms: Weiszfeld, Grid Variance, and Minimax
• Real driving distances and estimated drive times via OSRM (no API key required)
• Per-participant max travel time constraints with violation alerts
• Inline venue search — restaurants, hotels, cafes, and bars near the optimal point
• Gas Money Split — calculates fair reimbursement transfers based on distance
• Fairness Score (0–100) showing how balanced the trips are
• Session history — last 10 sessions auto-saved and restorable in one click
• Share codes — encode a full session as a short text code, no server required
• Calendar export — download .ICS files or open pre-filled Google Calendar / Outlook events
• Address book — save frequent locations for instant autocomplete
• Draggable optimal point marker for manual fine-tuning
• Save and compare multiple candidate meeting points side by side
• Export and import sessions as .rzvous files
• Full user guide opens in a separate window for reference while you work
Powered by OpenStreetMap, Nominatim, OSRM, and Leaflet. Completely free. No account required. No data stored on any server.