This site would display the same sort of information as All Trails: descriptions, pictures, waypoints, information about trail dangers, trail maps, time to complete the trail, distance, elevation gain, hiking season, etc.
I apologize if this is not the right community for this post. If there is a more appropriate community, please let me know, and I will repost this there.
Some of them can be achived with osm as even stated by the link commented by duncesplayed and this other wiki page, but not all of them unfortunately