Gender Classifier is a free Chrome add-on developed by Andre Bradshaw. As a tool for gender guessing, it provides a simple and efficient way to identify the gender of names. With Gender Classifier, users can upload a spreadsheet in csv or tsv format, and the tool will analyze the names, add the gender and probability to the spreadsheet, and then allow users to download the file with the original format.

The main feature of Gender Classifier is its ability to accurately guess the gender of names based on probabilities. This can be useful in a variety of scenarios, such as analyzing demographic data, conducting research, or personalizing communication. The tool is easy to use, with a straightforward interface that allows users to quickly upload and process their data. It is a valuable resource for anyone who needs to classify names by gender in a convenient and reliable way.