JSON Formatter

The tool accepts a text input containing JSON or JSON5 and returns either a formatted, human-readable string or a compact minified version. It performs strict parsing to detect syntax errors and, when invalid, returns a structured error with position information to aid debugging. Output is deterministic and non-destructive, preserving all data values while altering only whitespace and representation according to the selected mode.
Conceptually, the workflow is parse → normalize → serialize. It relies on standard JSON parsing rules for JSON, and a JSON5-compatible path when enabled. Formatting is achieved by serializing the in-memory object with the chosen indentation and spacing. Optional parameters control indentation width, whether to sort object keys, and whether to minimize whitespace for transport-ready payloads.
Who benefits: developers, API engineers, data scientists, and QA analysts who prepare payloads, review changes, or validate API responses. The tool reduces drift between environments by ensuring consistent formatting across teams. Its lightweight, in‑memory approach supports quick checks in scripts and CI pipelines.
Core value and differentiators: immediate feedback, explicit error metadata, and configurable formatting without altering data values. Core features include mode selection (pretty or minify), indentation control, optional key sorting, and robust error reporting. It deliberately avoids schema validation or data transformation beyond formatting to stay focused and fast.