How does the converter handle deeply nested JSON?

INI doesn't support nesting beyond sections, so deeply nested keys get flattened with dots. {"a": {"b": {"c": 1}}} becomes [a] with b.c=1.

Are arrays supported?

INI has no real array syntax. Arrays are written either as comma-separated values or as repeated keys, depending on the structure. For complex arrays, consider TOML or YAML instead.

By default, no. INI typically uses unquoted values. If a string contains special characters, it's wrapped in quotes.

Will the output work with Python's configparser?

Yes. The output uses the standard [section] and key=value style that configparser reads out of the box.

What if my JSON has no top-level object structure?

The output will have one default section (or no section header), with all keys at the top.

Can I convert INI files back to JSON?

Yes, there's a separate INI to JSON converter for that direction.

JSON to INI Converter Online

What is JSON to INI Conversion?

JSON to INI conversion takes structured JSON data and rewrites it in the simple key=value style INI format uses. INI files have been around since the early Windows days and are still common for desktop apps, configuration files, and CLI tools that want something readable without any nesting tricks. A json to ini converter flattens your JSON into sections and key-value pairs. INI is the most stripped-down config format around: sections in square brackets, keys with equal signs, and that's basically it.

Why Convert JSON to INI?

If you're working with software that reads INI files (PHP's php.ini, Git's .gitconfig, MySQL's my.cnf, many Python apps using configparser, or Windows desktop tools), you'll sometimes need to take JSON data and put it into INI form. A json to ini conversion saves you from rewriting it line by line. Use this tool when you need to generate INI configs from API responses or settings stored as JSON, migrate configuration from a JSON-based app to an INI-based one, share config in a format that almost any language can parse without a library, or edit settings in a text editor without YAML's indentation rules.

How Our JSON to INI Converter Works

When you click Convert, the tool maps top-level keys in your JSON to INI sections (the [section] headers), and the values inside each section become key=value pairs. Because INI doesn't support deep nesting, deeply nested JSON gets flattened, and nested keys are joined with dots so nothing is lost. The conversion is browser-based. Your JSON never reaches a server.

Features You Get

Section mapping: top-level objects in your JSON become [sections].
Flattening: deeply nested keys are flattened with dot notation.
Type-safe values: strings, numbers, and booleans are written without surprise quotes.
Upload support: load a .json file from your device or drag-and-drop it into the input.
One-click copy: grab the INI output with the Copy button and paste it into your config file.

How to Use the Tool

Paste your JSON into the input panel, or use the Upload File button to load a .json file.
Click the Convert button to generate the INI output.
Confirm the sections look right and the keys line up with what your config parser expects.
Click the Copy button to copy the INI to your clipboard.

Common Use Cases

PHP configuration: generating php.ini snippets.
Database configs: building MySQL or PostgreSQL config files.
Desktop apps: many old-school Windows and cross-platform apps still read INI.
Python configparser: INI is the default format for the standard library config parser.

Example Conversion

Input (JSON)

{
  "database": {
    "host": "localhost",
    "port": 5432
  },
  "app": {
    "debug": true
  }
}

Output (INI)

[database]
host=localhost
port=5432

[app]
debug=true

Frequently Asked Questions

Related Converters

INI to JSON JSON to YAML YAML to INI