# JSON Flatten

URL: https://pdfflare.com/tools/json/json-flatten
Category: JSON Tools

Flatten nested JSON to dot-notation keys, or rebuild a flat object back into nested JSON. Bi-directional, free, browser-based.

## What it does

JSON Flatten / Unflatten — Free Online. Flatten / unflatten nested JSON.

Runs entirely in your browser. No file ever uploads to a server unless the tool explicitly requires server-side processing (LibreOffice for Office formats, Ghostscript for PDF compression). Free to use, no signup, no rate limits.

## Common search queries this tool answers

- flatten json online
- json flatten
- unflatten json
- flatten nested json
- json dot notation
- json to flat object

## How to use it

1. Open https://pdfflare.com/tools/json/json-flatten
2. Follow the on-page instructions for json flatten
3. Your result is generated locally in the browser

## Other json tools on PDFFlare

- [JSON Formatter](https://pdfflare.com/tools/json/json-formatter): Format, validate, repair JSON
- [JSON to TypeScript](https://pdfflare.com/tools/json/json-to-typescript): Generate TS interfaces from JSON
- [JSON to CSV](https://pdfflare.com/tools/json/json-to-csv): Convert JSON ↔ CSV both ways
- [JSON to YAML](https://pdfflare.com/tools/json/json-to-yaml): Convert JSON ↔ YAML both ways
- [JSON Diff](https://pdfflare.com/tools/json/json-diff): Compare two JSONs structurally
- [JSON Generator](https://pdfflare.com/tools/json/json-generator): Generate dummy JSON from templates

## About PDFFlare

PDFFlare is a free collection of online tools for working with PDFs, images, text, JSON, and developer utilities. All tools run client-side in your browser — no signup, no upload to our servers, no rate limits.

For the full site index, see https://pdfflare.com/llms.txt.
For the complete content dump in one file, see https://pdfflare.com/llms-full.txt.