What does this tool do?

This tool converts a JSON object into a .env file format — one KEY=VALUE line per entry. It also works in reverse: paste .env variables and get a JSON object back.

How are nested JSON objects handled?

Nested JSON objects are flattened using underscore-separated keys. For example, { "database": { "host": "localhost", "port": 5432 } } becomes DATABASE_HOST=localhost and DATABASE_PORT=5432.

Are values with spaces quoted automatically?

Yes. If a value contains spaces, special characters, or is a multi-word string, it is automatically wrapped in double quotes in the .env output (e.g., APP_NAME="My Application").

Completely. All conversion logic runs in your browser using JavaScript. No data is sent to any server. You can even use this tool offline after the page loads.

Can I convert .env back to JSON?

Yes — switch to .env → JSON mode, paste your environment variables, and get a clean JSON object. Underscore-separated keys are kept as flat keys in the JSON output.

What file can I download?

You can download the output as a .env file (for JSON → .env mode) or as a .json file (for .env → JSON mode) with one click.

Free Developer Tool

Convert JSON to .env
Instantly & Free

Paste a JSON object and get a ready-to-use .env file in seconds. Or go the other way — convert .env variables back to JSON. Nested keys are flattened automatically. 100% in-browser, nothing uploaded.

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Bidirectional

Convert JSON → .env and .env → JSON with one click. Switch modes instantly.

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Nested Flattening

Deep JSON objects are flattened with underscore-separated keys: { db: { host } } → DB_HOST.

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100% Private

All conversion happens in your browser. No uploads, no servers, no tracking.

JSON Input0 lines

.env Output

🔒 All conversion happens in your browser — no data is ever uploaded.

Frequently Asked Questions

Everything you need to know about JSON to ENV Converter.

Convert JSON to .envInstantly & Free

Bidirectional

Nested Flattening

100% Private

Frequently Asked Questions

Convert JSON to .env
Instantly & Free