Remove Empty Values from JSON

The Remove Empty Values tool prunes anything that carries no data from your JSON: empty strings, empty arrays, empty objects, and optionally null. It works recursively and repeatedly, so containers that become empty after their contents are cleaned are removed too. The result is a compact document that keeps only meaningful values.

• Removes empty strings, empty arrays, and empty objects recursively
• Optionally treats null as empty and removes it too
• Re-runs until nested containers that became empty are also pruned
• Configurable rules so you can keep, for example, empty arrays
• Preserves meaningful falsy values like 0 and false
• Reports the number of values removed

1. 1

   Paste your JSON

   Add the document with empty fields you want to strip out.

2. 2

   Select what counts as empty

   Decide whether empty strings, arrays, objects, and null should each be removed.

3. 3

   Clean

   The tool prunes empty values recursively, including containers emptied by the process.

4. 4

   Copy the compact JSON

   Use the trimmed result in requests, storage, or comparisons.

• Cleaning form submissions where blank fields serialize as empty strings
• Removing empty arrays and objects left over from partial data
• Compacting API payloads to send only fields that hold data
• Tidying config files before committing them
• Normalizing documents before diffing or merging