JSON Flatten
Flatten nested JSON into dot-notation keys.
Input
Output
Convert nested JSON objects and arrays into a flat object with dot and bracket path keys.
How to use
- Paste nested JSON.
- The flattened version appears.
- Copy the dot-notation result.
Frequently asked questions
- How are arrays shown?
- As bracketed indices, e.g. items[0].name.
- Can I reverse it?
- This tool only flattens; the keys clearly encode the original structure.