JSON Formatter

The tool formats JSON input by applying user-selected options to produce a deterministic output that is easier to read and diff. It validates syntax and returns a clear error when input is invalid, enabling rapid debugging. Conceptually, it builds a structured representation of the JSON data, then serializes it according to the chosen indentation and key ordering rules. This separation between parsing and rendering ensures correctness and repeatability across environments. The unique value lies in combining strict validation, optional key sorting, and configurable indentation in a single, developer-centric workflow. Core features include pretty-print formatting with selectable indent size and style, optional minification for compact payloads, and recursive key sorting to stabilize diffs across commits. Use cases span API development, data inspection, test data preparation, and auditing JSON payloads. The tool is designed to handle complex nested structures, preserving numeric precision and correctly representing all JSON types. It supports large payloads within memory constraints and provides precise error reporting to accelerate fixes. By exporting a consistent, production-ready JSON representation, teams reduce back-and-forth during code reviews and API testing, while maintaining a single source of truth for payloads and schemas.