FreeFormatter - Freeformatter is a platform that contains free online tools for developers, including formatters (json, html, xml, sql, etc.), minifiers (css, javascript), compactors, validators, and much more.
jq - jq is like sed for JSON data - you can use it to slice and filter and map and transform structured...
JSON Formatter & Validator - The JSON Formatter was created to help with debugging.
fx - Command-line JSON processing tool
Amaze File Manager - Free and open-source Android file manager with no ads.
JSONCompare - JSONCompare is a tool that helps to compare and find diff in JSON data.