C#

– dotnet-ndjson

C++

– ArduinoJson

Elixir

– ex_ndjson

Go

– jsons

Haskell

– ndjson-conduit

Java

– jsondb

JavaScript

– ndjson
– ld-jsonstream
– ndjson-rxjs

PHP

– clue/reactphp-ndjson
– sunaoka/ndjson

Python

– ndjson
– jsonlines (handles ndjson as well)

R

– jsonlite
– ndjson
– geojson

Ruby

– ndjson.rb