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Telling a friend from Istanbul about Amsterdam, you might say “the Jordaan is a bit like Cihangir”. Twinhoods does that for whole cities, all around the world.
Every neighbourhood has a profile of 17 traits, from nightlife and food to green and historic, plus how central it is. Each place in the city you're exploring gets the name of the closest match in your city. Every name is used once, so the whole map fits best; a leftover place can share a similar neighbour's name, and a leftover park wears your city's closest park's name.
Colours say what a place is most about (the list has the key). The number is how alike the two are: 100 is the same profile, a random pair scores about 50, and the map's fit is the average. ??? means nothing in your city fits that place: the names ran out, the close ones went to places they fit better, or it's a park and your city has no park like it.
Shapes follow open boundary data where there is some, and elsewhere are drawn around each neighbourhood's heart and cut by water: they show roughly where a place is, not where it legally ends. Profiles are impressions written with AI help and checked against OpenStreetMap: vibes, not facts, and not travel or safety advice. Something wrong or hurtful? hello@twinhoods.com
Map © OpenFreeMap © OpenMapTiles data from OpenStreetMap. Neighbourhood boundaries and some coordinates © OpenStreetMap contributors, available under the ODbL. Some boundaries in New Zealand from LINZ (CC BY 4.0), in the UK from the ONS and the Scottish Government (OGL v3; contains OS data © Crown copyright and database right), and in Japan edited from e-Stat census areas. Cities to add from GeoNames (CC BY 4.0). Open-source licences.
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