JSON Blob Formatter

Purpose & User Intent: The tool formats and validates JSON blobs to produce readable, standards-compliant payloads. It targets developers, QA engineers, API testers, data engineers, and integrators who regularly exchange JSON data and need consistent structure.
Core Logic & Features: The tool parses input with strict RFC 8259 JSON rules, rejects invalid syntax, and supports options for formatting style (pretty with indentation or minified). Required features include syntax validation, error reporting with offset positions, and deterministic output. Optional/advanced features: custom indentation width, trailing comma handling policy (not allowed by RFC 8259), and compact representation for large payloads.
Inputs & Outputs: Input: json_blob (string, required) sample: '{\"a\":1,\"b\":2}' ; optional: indent (integer, 0-8). Validation: must be valid JSON; outputs: formatted_json (string), minified_json (string), error_details (object) when invalid.
Algorithms & Calculations: Implementation relies on parsing via standard JSON.parse (or equivalent) and formatting via JSON.stringify(value, null, indent). Use RFC 8259 for value types; if input exceeds memory, stream-based approaches are noted.
Error & Edge Cases: Invalid syntax triggers structured error with character position; large inputs may require chunking; comments or trailing commas cause immediate errors; non-UTF8 input is rejected or sanitized.
Industry/Region & Localization: Standard JSON is language- and locale-agnostic; no currency or unit conversions; suitable for software localization databases and API payloads.
Assumptions & Exclusions: Assumes input is JSON-native (no YAML or XML); does not execute code; does not interpret JSON with comments.