JSON Diff Formatter

Purpose & User Intent: The tool addresses the need to standardize JSON and detect changes across payloads. It targets developers, QA engineers, data scientists, and automation teams who produce, consume, or verify JSON payloads. It is used when you need to normalize payloads before comparisons, generate human-readable diffs for review, or produce minified payloads for transmission.
Conceptually, the tool parses inputs as JSON, validates syntax per RFC 8259, and builds an internal model. Formatting is a deterministic process controlled by user options: indentation level, key sorting, and output choice between pretty-printed and minified forms. If in diff mode, the tool traverses both documents to surface changes and produces a diff report.
Core features include: parse/validate JSON, pretty print, minify, sort keys, diff two JSONs, and export outputs. Outputs include a formatted JSON string and a diff report. It handles arrays, nested objects, nulls, booleans, and numbers using standard semantics. Error reporting includes exact location and type of mismatch.
Use cases include API response verification, configuration audits, and data migrations. Distinctive value comes from integrated formatting and diff in a single tool, with path-based diffs and optional JSON export of diffs, suitable for CI pipelines and developer workflows.