Where can I find retrospective software tools with customizable templates?

You can find retrospective software tools with customizable templates, formats and techniques on various platforms and in various software tools. For example, we recommend the retrospective software tool Echometer with customizable templates for retrospective questions and techniques. The templates in Echometer include selectable icebreakers and open questions for your retrospective, such as the techniques “Keep Stop Start”, “Mad Sad Glad” or the sailboat retrospective.

You can find an overview of the templates in Echometer here: https://my.echometerapp.com/retro-setup.