What does JSON Flattener do?
Flatten nested JSON into dot-notation keys. The workspace keeps the input and result together, making it easy to check the change before you use it elsewhere.
For example, you can flatten nested JSON into dot-notation keys while debugging an API payload.
What you can control
JSON Flattener stays deliberately simple: add the content, run the tool, and review the result.
How to use JSON Flattener
- 1
Paste or type the content you want to work with.
- 2
Review the content and correct anything you do not want carried into the result.
- 3
Run JSON Flattener, review the output, then copy or download it where available.
Tips for a better result
- Work from a copy of the content, especially if the JSON Flattener result will be imported elsewhere.
- Read the complete result rather than relying on the first line or preview alone.
- Confirm field names, data types, quoting and character encoding before importing the result.
Frequently asked questions
Is my input private when I use JSON Flattener?+
JSON Flattener processes the pasted data locally in this browser. The working content is not stored by 247888.
What should I check after using JSON Flattener?+
Confirm field names, data types, quoting and character encoding before importing the result.