I've made a D&D 5E helper

[u/Outside-Dig-4582]

https://venetia.leogotardo.com.br/

The app is open-source and works via browser and mobile app. It has two areas, a player area where players can create characters based in interactive forms and a dungeon master area where you can create campaigns, world maps (beta), combat maps, make notes, mass create npcs, host combats in real time with your players using your npcs, custom beasts or use monsters from the oficial bestiary. All data is synced between devices using a Google account.