About

WhatHotel.io is a fast, simple way for Bonvoy members to explore every Marriott property worldwide.

What Hotel is the only interactive map of all 38 Marriott hotel brands worldwide, built specifically for Bonvoy members. Explore thousands of properties on a beautiful, fast map interface that makes finding your perfect hotel effortless.

Filter by brand tiers, individual brands, pet-friendly properties, and more. Get instant access to elite benefits information, welcome gift details, and comprehensive hotel information—all in one place. Whether you're planning your next luxury escape or a quick business trip, What Hotel helps you discover the ideal Marriott property faster than ever.

Designed to improve on the official Marriott website experience, What Hotel combines powerful search, intelligent filtering, and detailed property insights to help you make better booking decisions.

What Hotel is a solo developer project created by a London-based avid traveler and Bonvoy Platinum member. If you find this tool helpful, consider supporting its development:

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What Hotel is independent and not affiliated with or endorsed by Marriott International. All trademarks are the property of their respective owners.