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JSON diff and patch, maintained by Joseph Burnett, is a cross-platform command-line utility and Go library designed to compute and apply changes between JSON or YAML documents. Offered in nine numbered releases, the current build 2.5.0 provides developers, DevOps engineers, and data analysts with deterministic diff output in three interchangeable formats: its own concise jd notation that resembles the familiar unified diff, the standard JSON Merge Patch as defined by RFC 7386, and a safe subset of JSON Patch operations covered by RFC 6902. Typical use cases range from validating API responses in continuous-integration pipelines, reviewing configuration drift across Kubernetes manifests, and generating minimal update payloads for REST services, to producing human-readable change summaries for documentation or audit trails. Because jd normalizes and sorts keys before comparison, it reliably detects semantic rather than textual differences, making it equally effective for compact one-liners and multi-megabyte datasets. The companion Go package lets applications embed the same differencing engine without external dependencies, while an online playground at http://play.jd-tool.io/ invites interactive experimentation without local installation. The program is available for free on get.nero.com, with downloads served through trusted Windows package sources such as winget, always supplying the latest version and supporting batch installation of multiple applications.
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