.env · transform

JSON to ENV

Turn JSON objects into valid .env files. Flattens nested keys automatically with configurable separators.

Be the first to rate

JSON input

.env output

DATABASE_URL=postgres://user:pass@localhost:5432/db
PORT=3000
DEBUG=true
STRIPE_SECRET_KEY=sk_test_xxx
STRIPE_WEBHOOK=whsec_xxx

What it does

▸Converts any JSON object into a valid .env file
▸Flattens nested keys with configurable separator
▸Uppercases keys and sanitizes invalid characters
▸Copy or download the result
▸Works offline — 100% client-side

Privacy

Runs 100% in your browser. Your .env never touches our servers.

client-side only

Example

Input → Output

{
  "database": { "url": "postgres://..." },
  "port": 3000
}

DATABASE_URL=postgres://...
PORT=3000

Convert JSON to .env

Paste a JSON object and get a .env file back. The json-to-env converter flattens nested keys automatically so { "db": { "url": "..." } } becomes DB_URL=.... Useful for migrating configs, generating env files from GitHub Secrets exports, or bootstrapping local setup.