Flatten nested JSON objects into dot-notation key-value pairs. Unwrap complex hierarchies for tabular processing. Everything runs locally in your browser — nothing is uploaded.
Flatten nested JSON to dot-notation key-value pairs
Format, validate, and convert JSON to Zod schemas, URL query parameters, flat key-value pairs, JSON-LD, or analyze size and structure.
Query JSON data using dot-notation path expressions with wildcard support. Everything runs locally in your browser — nothing is uploaded.
Visualize JSON structure as an indented tree — see nested objects and arrays at a glance.
Convert JSON objects to YAML format with proper key-value formatting and nested structure support. Everything runs locally in your browser.
Convert JSON objects to INI config file format with section headers and key-value pairs. Perfect for configuration file generation.
JSON Flattener lets you flatten nested JSON objects into dot-notation key-value pairs. Unwrap complex hierarchies for tabular processing. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Flatten nested JSON objects into dot-notation key-value pairs. Unwrap complex hierarchies for tabular processing. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Paste or type your content directly into the provided text area.
Yes. After the initial page load, JSON Flattener runs entirely on your device with no internet connection needed. All processing is done locally.
It converts nested JSON objects into a flat key-value structure using dot notation. For example, {a: {b: 1}} becomes {'a.b': 1}. This makes nested data suitable for CSV export and database imports.
Arrays can be flattened with indexed keys (items.0, items.1) or with bracket notation (items[0]). Choose the style that matches your downstream processing requirements.
Exporting nested API responses to CSV, importing JSON into flat databases, transforming data for spreadsheet analysis, and preparing data for tools that require tabular input.
No hard limit. Deeply nested structures (10+ levels) are flattened correctly, though very deep hierarchies may produce long key names that are harder to read.
No. All flattening happens locally in your browser. No JSON data is sent to any server.