Developer & data · By AIXpress
JSON Array Deduplicator
Remove structurally duplicate JSON array values while preserving the first occurrence and ignoring object key order.
Developers cleaning duplicated records and nested API result arrays.
Free to use. Your inputs are processed in this browser and are not included in usage analytics.
How to use json array deduplicator
- Paste an array containing repeated values or records.
- Deduplicate by complete structural value.
- Copy the array containing the first instance of each unique value.
What to know about the result
- Processing stays in this browser. Inputs are never executed and no data is sent to an API.
- Inputs are limited to 200,000 characters, 64 nesting levels, and 50,000 JSON values. Quote integers outside the safe integer range.
- Object key order does not affect equality. Array order, string case, and types do affect equality.
- This compares complete values; records with the same ID but different data remain separate.
Related tools
- JSON Formatter
Validate JSON and make API responses or configuration files readable with consistent indentation.
- JSON Minifier
Remove unnecessary JSON whitespace while preserving the parsed values for compact payloads.
- JSON to CSV Converter
Convert an array of JSON records into CSV with combined headers and spreadsheet-safe cells.
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