Words API lets you search for words using a lot of different parameters, one of which is the frequency of how often the word is used. Today, we’re open sourcing the tools we used to calculate those frequency numbers. You can view the tools on Github: https://github.com/WordsAPI/wordfrequencies The Idea Computing word frequency isn’t a new idea, but most of the data sources are either old, not in the public domain, or weren’t computed from a very big corpus of data.