For me OjG (https://github.com/ohler55/ojg https://github.com/ohler55/ojg) has been great. I regularly use it on files that can not be loaded into memory. The b

For me OjG (https://github.com/ohler55/ojg https://github.com/ohler55/ojg) has been great. I regularly use it on files that can not be loaded into memory. The best JSON file format for multiple record is one JSON document per record all in the same file. OjG doesn't care if they are on different lines. It is fast (https://github.com/ohler55/compare-go-json https://github.com/ohler55/compare-go-json) and uses a fairly complete JSONPath implementation for searches. Similar to jq but using JSONPath instead of a proprietary query language. I am biased though as I wrote OjG to handle what other tools were not able to do.