JSON → .env lines

Client

Turn configuration JSON into KEY=value text for local env files—nested keys use dot notation. Pair with the reverse tool for round trips.

Learn more: JSON to env lines

Emit dot-separated keys from nested objects—suitable for quick .env drafts, not a full secrets manager.

Secrets

Do not paste production secrets into untrusted tabs. This page runs locally but treat clipboard and screen exposure like any other web tool.

JSON → .env lines

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Nested objects become dot-separated keys. Arrays are JSON-stringified on one line. Strings with spaces use double quotes.

Common use cases

  • Flatten nested config JSON into KEY=value snippets for local .env files or twelve-factor style examples.
  • Share non-secret defaults as env text while keeping structured JSON as the source of truth in repos.
  • Round-trip with the from-env tool to confirm dotted paths map the way your app reads variables.

Common mistakes to avoid

  • Committing generated env files with real secrets

    Treat output as sensitive if it contains tokens. Use .env.example for public repos and inject secrets via your platform.

  • Expecting arrays to round-trip through env text losslessly

    Env lines are flat. Complex arrays may need JSON strings or a different config format.

FAQ

Is conversion performed locally?

Yes. JSON is flattened to text entirely in your browser.

How is this different from the Properties converter?

Both flatten nested maps; choose based on whether you need Java .properties conventions or shell-style KEY=value exports.

More tools

Related utilities you can open in another tab—mostly client-side.