In the core of Site is used modern API server. https://github.com/GermanZvezdin/Grammakey.

GrammaKey site was constructed with GO language, which is powerful for server-side tasks. To get result text users just need to type key sentence in the specific field and get the result text, which can be downloaded.

in the static dir is located front end side of site.

go run main.go

or you can build project:

go build main.go

and after that:

./main