Is my JSON data uploaded to a server?

No. Everything runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.

What about nested objects?

They are rejected with a clear error: environment variables are flat by nature. Flatten your config first, or stringify nested parts yourself.

100% local — your data never leaves your browser

JSON to ENV Converter — Generate .env Files Online

Convert a flat JSON object to .env KEY=value lines instantly in your browser. Free, private and offline-friendly: your data never leaves your device.

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Swap: .env → JSON

JSON input

.env output

Why convert JSON to .env?

Config stored as JSON often needs to become environment variables for Docker, CI or local development. Paste a flat JSON object above and get ready-to-use .env lines.

How it works

Each key becomes a KEY=value line. Values containing spaces, quotes or # are wrapped in double quotes with proper escaping; null becomes an empty value. Nested objects are rejected rather than silently mangled.

Frequently asked questions

Is my JSON data uploaded to a server?: No. Everything runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.
What about nested objects?: They are rejected with a clear error: environment variables are flat by nature. Flatten your config first, or stringify nested parts yourself.