What it is
Streamson is a tool to process large JSON inputs (the input can be a stream of JSONs as well). It tries to be memory efficient and it assumes that entire JSON won't fit into memory.
What it is not
Streamson is not a JSON parser which tries to convert data to some kind of internal representation. It simly expects UTF-8 encoded input and it is able to convert it to another UTF-8 encoded output. Note that the output doesn't really need to be a valid JSON.