Please consider a better editor for formatting notes and task notes. The use of html-like tags is good for visuals, but exporting/copying the text into 3rd party apps, like Word or whatever, always copies the tags and it is pain to remove these and reformat the result. Even a markup syntax would be enough, I think.

Ability to have the completion of one task lead to the start of another task. Would also need the abillity to either link tasks or sort in the required order

Allow a checklist to be created for a task. When a task is marked as complete warn the user if all check boxes aren't checked before marking complete.

My work emails all go through outlook. I generate a lot of my tasks through email. I would rather use toodledo to manage tasks than outlook tasks. There is a cognitive dissonance if I try and use both together and i end up only checking one or the other. Things move too fast for me to "forward" all my emails to toodledo (i tend to get in the region of 200 actionable emails a day). Can toodledo "sync" with outlook tasks? Can toodledo use IFTTT to sync certain contexts to outlook tasks and vice versa? That way when i review my @outlook list on toodledo, i'd know it was a complete list of things i need to do whilst in outlook.

Add another level of heirarchy so that subtasks can have their own subtasks

Launch new Mobile Apps (Android). Add on features can be discussed in this thread. IOS app thread can be found here: https://roadmap.toodledo.com/feature-requests/p/new-native-mobile-ios-app

Implement an optional dark theme, making the website (and phone apps) more pleasant in dark environment.

Make new folder more easily on the Tasks view without to have to go the Folders view.

Is it possible to set a reminder 10, 5 & 1 day before the task it due as a preemptive reminder. E.g If my boiler needs servicing and is due 1 year later, if i get the reminder only on the due date by the time i book the boiler service in 1 will 3-5 overdue. This would allow me to proactive relevant to tasks that are coming due.

Ability to link a Task entry to another Toodledo feature (Notes, Outlines, Lists, Habits). This would improve integration between the different features. Examples: Create a Task that refers to a specific Note with more information needed to complete task. Create a Task that will Log a Habit as done when the Task is completed. Add Outline items to Tasks, and share completed status.