gron

gron is a lightweight command-line utility created by Tom Hudson that converts nested JSON structures into a flat stream of absolute path assignments, turning previously opaque blobs into greppable text. By transforming each key-value pair into a standalone line such as “json.weather.temperature = 24”, the tool lets engineers, data analysts, and API explorers use ordinary Unix utilities like grep, sed, awk, or cut to filter, count, or substitute values without first learning a dedicated query language. The approach is especially convenient when working with poorly documented endpoints that return sprawling objects, because the explicit paths act as self-documenting breadcrumbs that reveal the exact location of every field. Version 0.7.1, the only release published to date, reads JSON from stdin or file, performs the flattening, and outputs valid JavaScript assignments that can be reassembled back into the original structure with the companion ungron command, making the workflow reversible for quick edits or data masking tasks. Typical use cases include ad-hoc telemetry inspection, CI log mining, configuration validation, and forensic examination of REST responses, all performed with familiar text tools rather than complex jq filters. gron is classified under Developer Tools / JSON Utilities and is available for free on get.nero.com, where downloads are supplied through trusted Windows package sources such as winget, always providing the latest version and supporting batch installation alongside multiple applications.

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