.env to JSON Converter

Convert .env, dotenv, and environment variable configuration files into formatted JSON in your browser.

At a glance

.env to JSON Converter parses environment configuration files into structured JSON. It handles single and double quotes, strips export prefixes and comments, supports multiline values, offers optional type casting for numbers and booleans, and formats nested object keys entirely client-side without transmitting credentials to any server.

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100% Client-Side Dotenv to JSON Transpiler

Zero Server Uploads

Parse .env and dotenv configuration files into clean, structured JSON. Sensitive API keys, secrets, and credentials remain strictly in your browser memory.

Local Sandbox

Presets:

Upload .env

.env Configuration

0 lines • 0 chars

Conversion Options

Cast Types (Int/Bool/Null) Nest Dot & __ Keys

Indent:

Ready

Generated JSON Payload

0 keys parsed • 0 bytes

0.0ms

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Why Use This .env to JSON Converter?

100% In-Browser Privacy: Dotenv credentials, database passwords, and API secrets never touch an external server or cloud endpoint.

Dotenv Syntax Compliant: Supports single and double quotes, multi-line values, escaped characters, and export prefixes.

Smart Type Casting: Optionally casts numeric strings to numbers, booleans to native booleans, and null values to native null.

Nested Key Resolution: Automatically expands dot notation (DB.HOST) and double underscores (DB__PORT) into hierarchical JSON objects.

Instant Export: Immediate one-click clipboard copying and .json configuration file downloading.

How to Use .env to JSON Converter

Paste or Upload .env

Paste your .env configuration into the editor or upload an existing dotenv file from your device.

Select Parsing Options

Enable smart type casting for booleans and numbers, or enable key nesting for dot or double-underscore syntax.

Copy or Download JSON

Copy the formatted JSON output to your clipboard or download it directly as a .json file.

Dotenv Configuration to Formatted JSON

Demonstrates converting environment variables into structured JSON with type casting and dot-notation key nesting enabled.

.env Configuration Source

PORT=3000
NODE_ENV=production
DB.HOST=127.0.0.1
DB.PORT=5432
DEBUG=false

Generated JSON Processed

{
  "PORT": 3000,
  "NODE_ENV": "production",
  "DB": {
    "HOST": "127.0.0.1",
    "PORT": 5432
  },
  "DEBUG": false
}

Technical Specifications & Engine Details

Technical specifications and engine details for .env to JSON Converter
Specification	Details
Supported Formats	ENV, DOTENV, TEXT → JSON
Execution Mode	100% Client-Side In-Browser (client)
Browser Requirements	Modern web browser with JavaScript enabled.
Performance Constraints	Zero external dependencies. Runs 100% client-side in browser memory.

Maintained by Pragyan Pahadi

100% Client-Side Privacy Guarantee

Your files and data remain strictly on your local device. Computations run locally using browser memory with zero network uploads.

Frequently Asked Questions

Is it safe to paste production API keys or passwords into this tool?

Yes. All dotenv parsing and JSON serialization run 100% client-side in your local browser JavaScript engine. No configuration text or secrets are ever sent across the network.

How does key nesting work?

When the 'Nest Dot & __ Keys' option is active, variables like DB.HOST or DB__PORT are split and structured into nested JSON objects like { "DB": { "HOST": "..." } }.

Does this tool strip comments and export prefixes?

Yes. The parser automatically ignores full-line comments starting with #, strips trailing comments preceded by whitespace, and strips optional 'export ' prefixes.

Are multi-line values like RSA private keys supported?

Yes. Quoted values (single or double quotes) that span multiple lines are fully preserved until the matching closing quote is reached.

Methodology

This tool runs entirely in your browser. The example above shows a representative input and the result it produces.

Last updated October 2026.