JSON Formatter Pro

Problem Solved

When debugging APIs, checking config files, or processing logs, JSON often needs to be pretty-printed and syntax-validated quickly. Manual indentation, pasting into web tools, or mixing separate validators makes the workflow fragmented. json-formatter-pro combines both tasks: it can emit readable JSON with controlled indentation and can also validate JSON without producing formatted output, which is useful in local scripts or CI checks.

How It Works and Limitations

• Format: reads from a file or stdin, applies indentation from -i, defaults to 2 spaces, writes to -o if provided, or defaults to stdout.
• Validate: validate mode only checks JSON validity, making it easy to wire into automation through exit codes.
• Optional sorting: --sort-keys orders keys alphabetically for stable diffs and manual review.
• Exit codes: 0 success, 1 invalid JSON syntax, 2 file not found or permission error, 3 other error.

This is not a general-purpose data transformer. It does not rewrite nested structures, compress fields, or process non-JSON content. Keep the original file and avoid overwriting source data with formatted output.