Best Open-Source JSON CLI Tools
The strongest command-line tools for processing, querying, and formatting JSON — and when to reach for each.
Why a dedicated JSON tool
JSON is everywhere — configs, APIs, logs — but shell pipelines mangle it. A dedicated JSON CLI lets you query, transform, and format JSON as first-class data instead of fighting with grep and sed.
The query-and-transform category
jq is the reference tool: a Turing-complete language for JSON. It is unmatched for complex transformations. For simpler needs — pretty-printing, key extraction, color output — lighter tools win on speed and ergonomics.
Picking by ergonomics
If you live in the terminal and write one-liners constantly, invest in learning the query language of a full tool. If you mostly need readable output and the occasional key lookup, pick the friendliest interface. Search 'json processor formatter cli' to compare.