Remove Duplicate JSON Records Online

About Duplicate JSON Remover Tool

This web app is a simple tool to clean up JSON data by removing duplicate records without breaking the JSON structure. You can either upload a .json file or paste JSON text directly into the input box. As soon as the data is loaded, the app processes it and shows two outputs: the cleaned JSON (with duplicates removed) and a list of the records that were identified as duplicates. You can choose whether to check for duplicates based on the entire record (deep equality) or specific key fields, such as id or email. The cleaned JSON is always displayed side by side, ready to copy or download, while the removed records can be reviewed on a separate tab. This ensures you always know exactly what was removed and can confidently use the corrected data.