JSON to .env Converter
Convert JSON config into dotenv variables and back
Runs 100% in your browser — nothing is ever uploaded.
What is JSON ⇄ .env?
Turn a JSON configuration object into a ready .env file — keys are normalized to UPPER_SNAKE_CASE, values with spaces get quoted — or paste an existing .env and get JSON back. Great for migrating configs between frameworks, Docker and CI systems.
How to use JSON ⇄ .env
- Paste your JSON object or .env file into the input box or click “Load sample” to try it.
- Adjust the options in the toolbar if needed (delimiter, table name, format …).
- Click the convert button — the result appears instantly in the output pane.
- Copy the result with one click or download it as a file.
ConvertLab FAQ
Is the JSON to .env converter free?
Yes — 100% free, no signup, no limits, no watermarks. Use it as often as you like.
How are nested JSON values handled?
Nested objects and arrays are stringified as compact JSON in the variable value — the common convention that libraries like dotenv and Docker Compose can consume.
Is my data uploaded to a server?
No. The conversion runs entirely in your browser with JavaScript — your data never leaves your device, which makes the tool safe even for confidential files.
Are these converters free?
Yes — every ConvertLab tool is 100% free with no signup, no limits and no ad walls.
Is my data uploaded anywhere?
No. All conversions (JSON, CSV, XML, YAML, INI, .env) run entirely in your browser. Nothing ever leaves your device.
Do these tools work offline?
Yes — once the page is loaded, every converter works without an internet connection.