Recently I switched to notebook.ai. It has customizable entries for characters, locations, items etc. It may be searched or filtered by name, by tag and with a full-text search. It also allows interlinking the entries for easier reference and navigation. - Source: Reddit / about 1 month ago
As for my notes, I use a big 9" by 12" spiral bound drawing booklet to scribble all types of notes during play. I eventually go and organize them into something more legible. I recently found Kanka.io which is a wiki designed for RPG's and I'm building out all the characters and notes into that for a database for me and the runners. - Source: Reddit / 11 days ago
Kanka: a (free) wiki-like website for your game/creation, you can see some exemple here. Before that I was using DMmaps + OneNote but with Kanka it's much easier and smoother. - Source: Reddit / 9 days ago
World Anvil - World Anvil is a worldbuilding tool for Authors, Storytellers and worldbuilding lovers.
Plot Factory - Online story planner, organizer, and writing application.
Notebook for Web - The beautifully simple note-taking app. Now on the Web.
World Scribe - World Scribe is a platform that eases the creation process if novel and allows users to keep track of important elements in their world.
The Everlast Notebook - Smart paper-and-pen notebook
Persona by Mariner Software - Persona is a character creation and organization app for writers.