Inputlog is one of the most used keyloggers. It enables researchers to observe the online writing process unobtrusively. It logs every input action that is used to produce a text, viz. keystrokes (incl. navigation keys), mouse movements and clicks and speech input via Dragon Naturally Speaking (Nuance). The program also provides a timestamp (in ms) and detailed information about the Windows environment that is activated (e.g. URL of a web page). Researchers can download the program from the Inputlog website for free (after registration).

Inputlog features five modules:

Inputlog also allows you to measure the (technical) typing skill of a participant. To this end, a so-called 'Inputlog copy task' has been developed in more than ten languages.