Toyhouse - Toyhouse is a platform that allows users to build up characters foe their games and stories.
Preceden - Preceden makes it easy to build simple, powerful timelines
World Anvil - World Anvil is a worldbuilding tool for Authors, Storytellers and worldbuilding lovers.
Timeline - Timeline is a cross-platform application for displaying and navigating events on a timeline.
Refsheet.net - Refsheet.
Tiki-Toki - Tiki-Toki is web-based timeline software for creating beautiful interactive timelines that you can share on the web.