Thymer is described as 'The IDE for tasks, notes and planning
Thymer is a smart new editor (IDE) designed to write, plan or share big ideas at the speed of thought' and is a todo list manager in the office & productivity category. There are more than 50 alternatives to Thymer, not only websites but also apps for a variety of platforms, including Android, iPhone, Windows and Mac apps. The best Thymer alternative is Logseq, which is both free and Open Source. Other great sites and apps similar to Thymer are Anytype, Notion, AppFlowy and AFFiNE.