JSON Formatter

The tool formats and validates JSON data to produce consistent, human-readable output. It accepts raw JSON, applies indentation or minification, and can sort object keys for predictable results. This aids developers, testers, and analysts when inspecting large payloads, logging responses, or preparing samples for documentation. The approach focuses on structural correctness and deterministic rendering, not data transformation.
Conceptually, the formatter parses the input into a tree, optionally orders object keys, and renders the tree with the chosen indentation. It preserves data values and string escaping, ensuring that numbers, booleans, nulls, and strings remain faithful to the source. The output can be a pretty-printed multi-line string or a compact one-liner, depending on options.
Users benefit from faster debugging, clearer diffs in versioned logs, and consistent samples for API references. The tool has robust error reporting that points to the exact location of syntax issues, aiding rapid correction. Its value lies in combining validation, formatting, and optional key sorting in a single, repeatable step.
Core features include RFC 8259-compliant parsing, configurable indentation (2, 4, or 6 spaces), optional key sorting, and optional minification. It is suitable for use in automated pipelines or interactive sessions where JSON readability and correctness matter.