Environment File Formatter

What is Environment File Formatting?

Environment file formatting standardizes the structure of .env files used to store configuration variables for applications. This tool formats key-value pairs with consistent spacing, validates variable names, optionally sorts variables alphabetically, and preserves comments. All formatting happens in your browser - your configuration data never leaves your device.

How to Use

1. Paste your .env file content into the input field
2. Choose formatting options (sorting, comments, spacing)
3. Click "Format" to standardize the formatting
4. Click "Validate" to check for errors without formatting
5. Copy the formatted output for use in your project

Example

Input:

# Database Configuration
DATABASE_URL=postgres://localhost
API_KEY=secret123

# Server Settings
PORT=3000
NODE_ENV=production

Formatted output (sorted alphabetically):

# Database Configuration
# Server Settings

API_KEY=secret123
DATABASE_URL=postgres://localhost
NODE_ENV=production
PORT=3000

Format Options

• Sort Alphabetically - Orders variables by name for easier lookup
• Preserve Comments - Keeps documentation comments in the output
• Compact Spacing - Removes extra blank lines between variables
• Spaced Spacing - Adds blank lines between variables for readability

Variable Name Rules

• Must start with a letter (A-Z, a-z) or underscore (_)
• Can contain letters, numbers, and underscores
• Cannot start with numbers
• Cannot contain hyphens, dots, or spaces
• Examples: API_KEY, DATABASE_URL, _PRIVATE_VAR

Value Quoting

Values are automatically quoted when they contain spaces or special characters. Already-quoted values are preserved. Use quotes for values with spaces, hash symbols, or when you need to preserve leading/trailing whitespace.

Privacy & Security

All formatting and validation happens entirely in your browser using JavaScript. Your environment variables, which often contain sensitive API keys and credentials, never leave your device. No data is sent to any server, ensuring complete privacy and security.