JSON Sorter & Cleaner

Presets:

Input JSON

Operations

Output JSON

What This Tool Does

JSON Sorter & Cleaner is built for deterministic developer and agent workflows.

Sort JSON keys, remove null values, deduplicate arrays, flatten nested objects — multiple operations in one tool.

Use How to Use for execution steps and FAQ for constraints, policies, and edge cases.

Last updated:

This tool is provided as-is for convenience. Output should be verified before use in any production or critical context.

Agent Invocation

Best Path For Builders

Browser workflow

Runs instantly in the browser with private local processing and copy/export-ready output.

Browser Workflow

This tool is optimized for instant in-browser execution with local data handling. Run it here and copy/export the output directly.

/json-sorter-cleaner/

For automation planning, fetch the canonical contract at /api/tool/json-sorter-cleaner.json.

How to Use JSON Sorter & Cleaner

  1. 1

    Flatten and deduplicate large JSON API responses

    Paste raw API JSON, enable 'flatten nested objects' and 'deduplicate arrays'. This converts deeply nested responses into flat key-value pairs and removes duplicate entries, ideal for database ingestion.

  2. 2

    Remove null/undefined values before sending to client

    Enable 'remove null values' and paste your JSON. This strips all null, undefined, and empty string keys, reducing payload size and preventing frontend null-check bloat.

  3. 3

    Sort configuration files for version control

    Paste unsorted .json config file, enable 'sort keys alphabetically'. Commit sorted output so diffs only show actual changes, not key reordering. Improves code review clarity.

  4. 4

    Validate JSON structure before parsing in code

    Paste JSON to check if it's valid and see the flattened structure. If flattening fails or produces unexpected results, your JSON has structural issues to fix first.

  5. 5

    Merge and deduplicate array fields across multiple JSON objects

    If you have JSON objects with 'tags' arrays that repeat across records, use the cleaner to flatten and deduplicate. Useful for consolidating user preferences or metadata.

Frequently Asked Questions

How is this different from JSON Formatter?
JSON Formatter validates and prettifies JSON syntax. JSON Sorter & Cleaner transforms the data: sorting keys alphabetically, removing null values, deduplicating arrays, flattening nested objects, and stripping unwanted keys.
Can I sort keys recursively?
Yes, choose recursive sorting to sort keys at every nesting level throughout the entire JSON structure, or select top-level only to sort the root keys.
How does array deduplication work?
For arrays of primitives, it removes exact duplicates. For arrays of objects, items are compared by JSON serialization. The operation log shows how many duplicates were removed.
What does flatten do?
Flatten converts nested objects to flat key-value pairs with dot notation: {"user": {"name": "Alice"}} becomes {"user.name": "Alice"}. Unflatten does the reverse.
Can I combine multiple operations?
Yes, check multiple operations and they execute in sequence. The operation log shows exactly what changed at each step — how many keys sorted, nulls removed, duplicates found, etc.