Advanced todo app with timeboxing and tracking — Super Productivity is an advanced todo list app with integrated Timeboxing and time tracking capabilities. It also comes with integrations for Jira, GitLab, GitHub and Open Project.
GTD to-do app that surfaces your next action — Get tasks and ideas out of your head. A free GTD to-do app for desktop and mobile. Works offline, no account needed
Minimalist weekly planner and to-do lists — WeekToDo is a Free and Open Source Minimalist Weekly Planner and To Do list App focused on privacy. Available for Windows, Mac, Linux or online.