+ jq — CLI JSON processor written on С. Allows to extract data from JSON, modify it, supports math, variables, regexes, even has a lot of built-in functions. Installable from Debian repositories.

+ jqplay.org — online playground for jq. Great to try it, debug expressions, have a handy cheat sheet.

+ gjson — must-have Go library to get values from a complex deeply nested JSON. Has a simple and intuitive syntax.

+ jj — CLI tool written on Go, wrapper around gjson. Hence less powerful than jq but much simpler and more friendly.

#golang #cli