Flatten JSON

Flatten and Unflatten JSON

Flatten nested JSON into one level of path keys like customer.city, or rebuild the nesting from those keys.

How to use it

1. Paste nested JSON, or choose Unflatten and paste flat JSON.
2. Pick a separator: dot, slash, underscore or your own.
3. Copy the result.

What it does

• Both directions
• Array indexes kept in the keys
• Any separator

Questions

When is flattening useful?

For spreadsheets, environment variables, search indexes and config systems that only accept flat keys.

Is my data uploaded?

No. Bracely runs entirely in your browser, so nothing you paste or open leaves your device.

More JSON tools

Bracely has more than 60 JSON tools in one page. Related ones:

• Sort JSON
• Convert JSON key case
• Remove nulls from JSON
• Remove duplicates
• Unix timestamp converter
• Filter JSON fields
• JSON find and replace
• JSON Formatter
• JSON Validator
• JSON Viewer
• JSON Repair
• JSON Diff
• JSON to YAML
• JSON to CSV
• jq Playground

Runs entirely in your browser. Nothing you paste is uploaded. Privacy policy