JSON to .env Converter – Export Config as ENV
Convert JSON configuration objects into .env key-value format instantly. Our free JSON Env Converter makes it easy to migrate app settings between JSON configs and environment variables.
Why Convert JSON to ENV Format?
Your config is in JSON but your deployment expects environment variables. Manually rewriting each key as an ENV variable is tedious and error-prone. You need a quick way to transform JSON configuration into dotenv format that works with Docker, Node.js, and most deployment platforms.
Common Use Cases:
- • Docker container configuration
- • Node.js dotenv files
- • CI/CD pipeline variables
- • Cloud platform environment settings
Benefits:
- • Fast conversion without manual typing
- • Handles nested JSON automatically
- • Proper value escaping
- • Bidirectional conversion support
Quick Steps
Paste JSON
Enter your JSON configuration object with nested settings
Set Options
Choose prefix for variable names if needed
Get ENV File
Download or copy the generated .env content
About JSON to ENV Converter
Moving configuration between JSON files and environment variables is a common DevOps task. This converter handles the transformation automatically, flattening nested JSON objects into the KEY_VALUE format that dotenv files expect. It works both ways, converting .env content back to JSON when needed.
How the conversion works
For JSON to .env mode, paste your JSON config and optionally set a prefix like APP. The tool flattens nested objects by joining keys with underscores and converts them to UPPERCASE. Arrays get stringified, booleans become true or false strings.
For .env to JSON mode, paste your dotenv content and the tool parses each KEY=value line. It intelligently converts values back to their original types: numbers become numbers, true becomes boolean true, and quoted strings stay as strings. The result is a nested JSON object.
When you'd use this
Your Docker deployment needs environment variables but your local config is JSON. Or you're migrating from a .env file to a cloud provider that expects JSON configuration. This tool also helps when documenting configuration options in different formats.
Note that complex nested structures may not round-trip perfectly. Arrays become JSON strings in .env format. Very deep nesting can create unwieldy environment variable names. For simple flat configs the conversion is clean.
Questions
How are nested objects handled?
Nested keys get flattened with underscores. A database.host value becomes DATABASE_HOST. The prefix option adds another level like APP_DATABASE_HOST.
What happens to arrays in .env format?
Arrays are converted to JSON strings. An array like [1,2,3] becomes the literal string "[1,2,3]" in the .env file.
Are special characters escaped properly?
Yes, values containing spaces, equals signs, or hash symbols get wrapped in double quotes to ensure valid .env syntax.
Can I convert back from .env to JSON?
Yes, switch to .env to JSON mode. The tool parses the dotenv format and reconstructs a flat JSON object with proper type conversion.
Does this support multiline values?
No, standard .env files don't support multiline values well. Keep your values on single lines for best results with this converter.