As a crowdsourced project OpenStreetMap data contains mistakes, errors, and other systematic issues. Due to the large number of errors and the global nature of the project focusing many people to work on these errors can be a difficult job. In this talk we’ll show how the micro tasking tool To-Fix aims to improve OpenStreetMap one error at a time. From loading raw data to presenting a simple interface that quickly allows users to work in their favorite editor, we’ll cover how the flexibility of To-Fix can work to systematically improve OpenStreetMap.