What is JSON to INI Converter?
JSON (JavaScript Object Notation) is a widely used data format for structured configuration, while INI files are a simple configuration format using [section] headers and key=value pairs. This tool converts between the two formats: transform JSON objects into INI configuration files where top-level keys become sections, or reconstruct JSON from INI files. It handles nested objects using dot notation and arrays using index notation.
How to Use
- Choose the conversion direction using the toggle button (JSON → INI or INI → JSON)
- Paste your JSON or INI content in the input area
- Click 'Convert' to generate the output
- Copy the result and use it in your project
Why Use This Tool?
Tips & Best Practices
- Top-level keys become INI sections: {"database": {"host": "localhost"}} becomes [database] host=localhost
- Deeply nested objects use dot notation: {"server": {"ssl": {"cert": "path"}}} becomes [server] ssl.cert=path
- Comments in INI files (lines starting with # or ;) are ignored during reverse conversion
Frequently Asked Questions
How do sections work in the INI output?
Each top-level key in the JSON object becomes an INI section header in square brackets (e.g., [database]). Nested keys under that object become key=value pairs within that section. For example, {"database": {"host": "localhost", "port": 5432}} produces [database]\nhost=localhost\nport=5432.
How are nested objects handled?
Top-level keys become sections. If a section contains further nested objects, they are flattened using dot notation. For example, {"server": {"ssl": {"cert": "path"}}} becomes [server]\nssl.cert=path in the INI output.
How are arrays converted?
Arrays use index notation with dot separators. For example, {"server": {"ports": [80, 443]}} becomes [server]\nports.0=80\nports.1=443. If array items are objects, they are further flattened with the index as part of the key prefix.
Can I convert INI back to JSON?
Yes. Use the direction toggle to switch to 'INI → JSON' mode. The tool will parse [section] headers and key=value pairs, reconstructing nested objects. Comments (lines starting with # or ;) are ignored. Boolean, number, and null values are automatically detected.
Is my data secure?
Yes. All processing happens entirely in your browser. Your JSON and INI content is never sent to any server. No data is collected, stored, or transmitted. You can safely convert configs containing sensitive values like API keys and database passwords.