Convert JavaScript Object to ENV Online - Free, Local & Instant
Instant JavaScript Object (.js) to ENV (.env) converter. 100% client-side processing in your browser RAM — zero file uploads, full privacy, drag & drop or paste raw text.
Technical Comparison: JavaScript Object vs ENV
Data & Dev Config| Specification | JavaScript Object (Source) | ENV (Target) |
|---|---|---|
| Full Specification | ES Module JavaScript Object Literal | Dotenv Environment Variable File (.env) |
| File Extension & MIME | .js (text/javascript) | .env (text/plain) |
| Data Typing Model | Unquoted identifier keys, single-quoted strings, ES export default | UPPER_SNAKE_CASE key=value strings (with quote escaping) |
| Structure & Hierarchy | Arbitrarily nested JS objects and arrays | Flat key-value pairs (nested paths joined with underscores) |
| Comments Support | Supported (// and /* */) | Supported (# comment) |
| Primary Ecosystem | Vite/Webpack configs, TypeScript/JS mock data, Next.js constants | Docker containers, Node.js process.env, Next.js, Laravel, 12-Factor apps |
JavaScript Object to ENV — Before & After Example
const data = [
{
id: 1,
name: 'Alice Johnson',
email: 'alice@example.com',
role: 'admin',
active: true,
score: 98.5,
address: {
city: 'Berlin',
country: 'DE',
},
},
{
id: 2,
name: 'Bob Smith',
email: 'bob@example.com',
role: 'editor',
active: false,
score: 87,
address: {
city: 'Austin',
country: 'US',
},
},
{
id: 3,
name: 'Chiara Rossi',
email: 'chiara@example.com',
role: 'viewer',
active: true,
score: 91.25,
address: {
city: 'Milan',
country: 'IT',
},
},
];
export default data;
ITEM_0_ID=1 ITEM_0_NAME="Alice Johnson" ITEM_0_EMAIL=alice@example.com ITEM_0_ROLE=admin ITEM_0_ACTIVE=true ITEM_0_SCORE=98.5 ITEM_0_ADDRESS_CITY=Berlin ITEM_0_ADDRESS_COUNTRY=DE ITEM_1_ID=2 ITEM_1_NAME="Bob Smith" ITEM_1_EMAIL=bob@example.com ITEM_1_ROLE=editor ITEM_1_ACTIVE=false ITEM_1_SCORE=87 ITEM_1_ADDRESS_CITY=Austin ITEM_1_ADDRESS_COUNTRY=US ITEM_2_ID=3 ITEM_2_NAME="Chiara Rossi" ITEM_2_EMAIL=chiara@example.com ITEM_2_ROLE=viewer ITEM_2_ACTIVE=true ITEM_2_SCORE=91.25 ITEM_2_ADDRESS_CITY=Milan ITEM_2_ADDRESS_COUNTRY=IT
Frequently Asked Questions: JavaScript Object to ENV
How do I convert JavaScript Object to ENV online without uploading sensitive files? ▾
Paste your JavaScript Object data or drag and drop a .js file into the converter above. ZeroUpload parses JavaScript Object and serializes ENV 100% inside your browser RAM using local JavaScript—no bytes are ever sent to an external server.
How are nested objects or tabular columns mapped between JavaScript Object and ENV? ▾
When converting hierarchical structures (Arbitrarily nested JS objects and arrays) and tabular or config formats (Flat key-value pairs (nested paths joined with underscores)), our engine automatically flattens or unflattens dot-separated keys (such as address.city) and preserves numbers, booleans, arrays, and null values.
Is this JavaScript Object to ENV converter free for commercial and production config files? ▾
Yes. The tool is completely free, requires no account or API key, and works offline once loaded. Because execution happens in local memory, it is safe for proprietary JavaScript Object, database exports, and production secrets.
Can I convert ENV back to JavaScript Object? ▾
Yes! Click the "Swap (ENV → JavaScript Object)" button at the top of the workspace or use the reverse converter link at the bottom of this page for bidirectional conversion.