csvtojson is a simple command line program to convert CSV to JSON.
You can clone/fork/whateveryouwant this repository, or simply download csvtojson.
Yeah, it is written in awesome Go! So, you can just "go get github.com/harrysbaraini/go-csvtojson"
-i : filename containing CSV
-o : filename where save the JSON
Example:
csvtojson -i=cars.csv -o=cars.json