JSON Cleaner: Remove Nulls, Empty Values, and Duplicates
JSON Cleaner removes selected unwanted values from JSON: nulls, empty strings, empty arrays, empty objects, and duplicate entries in arrays. Each cleanup category has its own toggle, so you can choose what to remove before running the cleanup. After processing, the tool shows a summary of what it removed, helping you review the result before copying it.
JSON Cleaner is a browser-based tool for cleaning JSON by removing null values, empty strings, empty arrays, empty objects, and duplicate array entries. It gives each cleanup category its own toggle, so you can choose which values to remove instead of applying every cleanup rule at once. After the cleanup runs, the tool shows a summary of what was removed.
To use the JSON Cleaner, paste or drop your JSON into the tool, select the removal options you want, and run the cleanup. The available options cover nulls, empty strings, empty arrays, empty objects, and duplicate entries in arrays. The removal summary helps you review the cleanup before copying the result for reuse.
JSON represents structured data using values such as strings, arrays, and objects. In some cases, nulls or empty values are not useful in the data being prepared, while repeated array entries can make a list harder to review. Cleaning JSON can help developers and DevOps engineers remove those items while keeping control over which cleanup rules are applied.
JSON Cleaner runs entirely in your browser: your input is processed on your own device and is not uploaded, stored, or sent to a server. It works offline once the page has loaded, so the cleanup can continue without an internet connection. Developers at any skill level can use it to tidy JSON, review what was removed, and copy the cleaned result.
Step 1: Paste or drop your JSON into the tool to provide the content you want to clean.
Step 2: Choose which categories to remove by using the separate toggles for nulls, empty strings, empty arrays, empty objects, and duplicate array entries.
Step 3: Run the cleanup to remove the selected values from your JSON.
Step 4: Review the cleaned result and the summary of what was removed.
Step 5: Copy the result when it is ready to reuse.
Use case: Remove null and empty values from JSON before reusing the data in another context.
Use case: Clean up JSON payloads by removing empty strings, arrays, or objects that are not needed.
Use case: Remove duplicate entries from a JSON array to make its contents easier to review.
Use case: Prepare JSON data for a workflow where unnecessary empty values should be excluded.
Use case: Inspect what cleanup changed by checking the summary of removed values.
Use case: Choose specific cleanup toggles when you want to remove some value types but keep others.