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JSON to .env Converter

Convert nested JSON config into .env variables.

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About the JSON to .env Converter

Turn a nested JSON configuration object into flat .env style environment variables, with keys converted to SCREAMING_SNAKE_CASE and nested paths joined by underscores.

Examples

Nested config

JSON{"db":{"port":5432}}

Output

DB_PORT=5432

Keyboard shortcuts

  • Copy the main outputCtrl / ⌘ + Shift + C
  • Download the resultCtrl / ⌘ + S
  • Share this toolCtrl / ⌘ + Shift + S
  • Reset the inputsAlt + R
  • Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-09 · Runs entirely in your browser