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Properties to JSON Converter

Convert Java Properties file format to JSON

Key Facts

Category
Format Conversion
Input Types
textarea, checkbox
Output Type
text
Sample Coverage
4
API Ready
Yes

Overview

The Properties to JSON Converter is a streamlined utility designed to transform Java Properties files into structured JSON format, making it easier to integrate legacy configuration files into modern web applications and APIs.

When to Use

  • •Migrating application configuration from Java-based environments to JavaScript or Node.js projects.
  • •Standardizing configuration formats for better compatibility with modern cloud-native deployment tools.
  • •Quickly parsing flat key-value pairs into hierarchical JSON objects for easier data manipulation.

How It Works

  • •Paste your raw Java Properties content into the input area.
  • •Select your preferred formatting options, such as enabling nested object creation from dotted keys.
  • •Click the convert button to generate the equivalent JSON structure instantly.
  • •Copy or download the resulting JSON for use in your project.

Use Cases

Converting legacy Java application properties into JSON for use in microservices.
Standardizing environment variables stored in properties files for frontend configuration.
Refactoring flat configuration files into organized, hierarchical JSON structures.

Examples

1. Converting Database Config

Backend Developer
Background
A legacy Java application uses a database.properties file with flat keys.
Problem
The team needs to move this configuration into a Node.js service that requires a structured JSON format.
How to Use
Paste the properties content and enable 'Create Nested Objects from Dotted Keys'.
Example Config
database.host=localhost
database.port=5432
database.user=admin
Outcome
The tool outputs a clean JSON object with a nested 'database' key containing the host, port, and user fields.

Try with Samples

json
JSON Samples
JSON (JavaScript Object Notation) format examples from simple to complex structures
title token json
json
Chat Transcript JSON Samples
JSON examples for multi-role chat transcripts
title token json
json
Rich Media JSON Samples
JSON examples for popular rich text editors (TipTap, Quill, Slate)
title token json
json
Hex/Unicode Encoding Format Samples
Examples of hex (\xXX) and unicode (\uXXXX) escape sequence encoding formats
matched family json
json

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FAQ

Can this tool handle nested keys?

Yes, by enabling the 'Create Nested Objects from Dotted Keys' option, keys like 'app.server.port' will be converted into a nested JSON object structure.

Does it strip out comments?

Yes, you can toggle the 'Ignore Comment Lines' option to automatically remove any lines starting with '#' or '!' from your output.

Will it clean up whitespace?

Yes, the 'Trim Whitespace from Values' option ensures that leading and trailing spaces are removed from your configuration values.

Is this tool secure?

The conversion process happens locally in your browser, ensuring your configuration data is not uploaded to any server.

What happens if my properties file is empty?

The tool will return an empty JSON object '{}' if no valid key-value pairs are detected in the input.

API Documentation

Request Endpoint

POST /en/api/tools/properties-to-json

Request Parameters

Parameter Name Type Required Description
propertiesInput textarea Yes -
ignoreComments checkbox No -
trimValues checkbox No -
nestedStructure checkbox No -

Response Format

{
  "result": "Processed text content",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}
Text: Text

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-properties-to-json": {
      "name": "properties-to-json",
      "description": "Convert Java Properties file format to JSON",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=properties-to-json",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

If you encounter any issues, please contact us at [email protected]