Convert INI to JSON Online Free

Drag & drop your .ini file here, or click to browse

Converts to JSON in your browser · first daily conversion free · no signup

Your first conversion each day is free. A $2.99 one-time Day Pass unlocks 24 hours and ends by itself.

How to convert INI to JSON: Drop your INI file into the converter above and get structured JSON back instantly. No upload, no signup, no software. ChangeThisFile parses your configuration file entirely in the browser and converts sections and key-value pairs into hierarchical JSON structure for modern applications.

By ChangeThisFile Team · Last updated: March 2026

Quick Answer

To convert INI to JSON, drop your file into the converter above. ChangeThisFile parses the INI sections and key-value pairs entirely in your browser using JavaScript and outputs structured JSON with proper data types. Perfect for modernizing legacy configuration files for APIs and cloud applications. Your file never leaves your device. Free, no signup required.

First daily conversion free No signup required Files stay on your device Instant conversion Updated May 2026

INI vs JSON: Format Comparison

Key differences between the two formats

Feature	INI	JSON
Primary purpose	Configuration storage	Data interchange
Structure	Flat sections with key-value pairs	Nested objects and arrays
Data types	String values only	String, number, boolean, null, arrays
Comments	Supported (; or #)	Not supported
Hierarchy	One level deep (sections)	Unlimited nesting
Standards compliance	Informal Windows convention	Official ECMA-404 standard
API compatibility	Legacy systems only	Universal web standard
Best for	Simple app settings, legacy systems	Modern APIs, web applications, databases

When to Convert

Common scenarios where this conversion is useful

Legacy configuration modernization

Transform old Windows application INI files into JSON format for importing into modern configuration management systems, cloud applications, or containerized deployments.

API integration preparation

Convert INI configuration data to JSON format for sending to REST APIs or modern web services that expect structured data instead of flat key-value pairs.

Database migration and storage

Parse INI settings into JSON documents for bulk insertion into NoSQL databases like MongoDB or for storage in database JSON fields.

DevOps pipeline integration

Convert legacy INI configs to JSON for use in Docker containers, Kubernetes ConfigMaps, Terraform configurations, or other infrastructure-as-code tools that prefer JSON format.

Who Uses This Conversion

Tailored guidance for different workflows

Developers

Convert INI config files to JSON for compatibility with different tools or frameworks
Transform INI API responses to JSON for debugging, logging, or documentation

Validate the converted JSON output with a linter to catch any structural issues from the conversion

Watch for data type coercion (e.g., numbers becoming strings) when converting between INI and JSON

Data Analysts

Convert INI exports to JSON for importing into spreadsheet software, databases, or BI tools
Transform INI datasets to JSON for sharing with teammates who use different analysis tools

Check that column delimiters and quote escaping are handled correctly in the converted JSON file

Preview the first few rows of the JSON output to verify headers and data alignment

System Administrators

Convert INI configuration to JSON when migrating between infrastructure tools or platforms
Transform INI log exports to JSON for ingesting into monitoring or analysis systems

Back up the original INI config before converting, especially for production systems

Test the converted JSON in a staging environment before deploying to production

How to Convert INI to JSON

1

Select your INI file

Drag and drop your INI configuration file into the converter area, or click "browse" to select a file from your device.
2

Automatic parsing and conversion

Your browser parses the INI sections and key-value pairs using a JavaScript library and converts them to hierarchical JSON structure with proper data type detection. No server processing involved.
3

Download your JSON

Click the download button to save the converted JSON file to your device. Ready to use in modern applications, APIs, or databases.

Automate this conversion

Convert INI to JSON via API

Integrate this conversion into your pipeline with 3 lines of code. Free tier: 25 conversions/month.

The free converter above runs entirely in your browser — your file is never uploaded. This optional API is a separate server-side endpoint for automating conversions at scale.

curl -X POST https://changethisfile.com/v1/convert \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@input.ini" \
  -F "target=json" \
  -o output.json --fail

const form = new FormData();
form.append('file', fileInput.files[0]);
form.append('target', 'json');

const res = await fetch('https://changethisfile.com/v1/convert', {
  method: 'POST',
  headers: { 'Authorization': 'Bearer YOUR_API_KEY' },
  body: form
});
const blob = await res.blob(); // your converted JSON file

Replace YOUR_API_KEY with your free key — no credit card needed.

Get a free API key

Frequently Asked Questions

Are my INI files uploaded to a server?

No. ChangeThisFile converts INI to JSON entirely in your browser using JavaScript. Your configuration file never leaves your device, which is crucial for files that may contain passwords, API keys, or other sensitive settings.

How does the converter handle INI sections?

Each INI section (like [Database] or [Security]) becomes a top-level object in the JSON. Key-value pairs within each section become properties of that object, creating a logical hierarchy that preserves the original structure.

What happens to comments in my INI file?

Comments (lines starting with ; or #) are not included in the JSON output since JSON format doesn't support comments. Only section headers and key-value pairs are converted to maintain clean, parseable JSON.

Does the converter detect data types automatically?

Yes. The converter attempts to detect and convert numeric values to JSON numbers and common boolean values (true/false, yes/no, on/off) to JSON booleans. Other values remain as strings to preserve the original data.

How are keys without sections handled?

Some INI files contain key-value pairs before any section header. These are captured under a root object or default section in the JSON so no configuration data is lost during conversion.

What if my INI file has duplicate keys in the same section?

Since JSON doesn't allow duplicate keys within an object, the converter uses the last occurrence of any duplicate key. This follows standard INI parsing behavior where later values override earlier ones.

Is there a file size limit for INI conversion?

There is no server-imposed limit since conversion happens entirely in your browser. INI files are typically small configuration files, so browser memory is rarely a constraint even for large enterprise configuration files.

Can I convert the JSON back to INI format?

Yes. ChangeThisFile supports the reverse conversion at json-to-ini. However, some JSON features like nested objects and arrays may require flattening when converting back to the simpler INI format.

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