JSON Sort Keys

JSON key sorting reorders the keys of JSON objects alphabetically. By default, JSON parsers preserve insertion order, but for readability, version control diffs, and consistent output, sorting keys can be helpful. This tool lets you sort keys ascending or descending, case-sensitive or case-insensitive, and recursively through nested objects or only at the top level.

Arrays are never reordered — only object keys are sorted. Objects inside arrays are sorted when recursive mode is on. The output is valid JSON with the same data, just reorganized.

Paste your JSON into the input area. Choose ascending or descending order, case-sensitive or case-insensitive comparison, and recursive (sort nested objects) or top-level only. Click Sort Keys to see the result.

The tool shows before and after with syntax highlighting. Use Copy Output to copy the sorted JSON. Key count and nesting depth help you understand the structure. All processing runs in your browser — your data never leaves your device.

Sort keys when you need consistent output for API responses, config files, or generated JSON. Sorted keys make diffs cleaner in version control. Some validation or comparison tools expect keys in a specific order. Use this tool to normalize JSON before committing, sharing, or feeding into other systems.