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 2 months ago
World Anvil - World Anvil is a worldbuilding tool for Authors, Storytellers and worldbuilding lovers.
Kanka.io - Kanka.
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.
Moleskine Smart Notebook - Turn hand-drawn sketches into fully workable vector files
Plottr - Visually plot out your novel 📚✍️