Overview

Encrypted environment variable manager using AES-GCM encryption via Web Crypto API. Manage dev/staging/prod .env files securely in the browser.

Built as a single-file HTML application — no build tools, no frameworks, no external dependencies. Just open index.html in any modern browser.

Features

• AES-GCM encryption via Web Crypto API (PBKDF2 key derivation)
• Passphrase-protected access — nothing stored in plaintext
• Three environments: Development, Staging, Production
• Copy individual values to clipboard
• Side-by-side environment diff viewer
• Zero external dependencies — single HTML file

Quick Start

1. Clone the repository
2. Open index.html in your browser
3. Enter a passphrase to unlock (first time creates a new vault)
4. Start adding environment variables

git clone https://github.com/soumendrak/env-var-manager.git
cd env-var-manager
open index.html

Project Structure

env-var-manager/
├── index.html    # The complete application
├── LICENSE       # MIT License
└── README.md     # This file

Security

• Uses AES-256-GCM encryption via the browser's native Web Crypto API
• Encryption key derived from passphrase using PBKDF2 (200,000 iterations, SHA-256)
• Encrypted data stored in localStorage
• Nothing transmitted over the network — all crypto happens locally

Dark Theme

All projects in this suite share a consistent dark theme:

Contributing

Contributions welcome! Open an issue or submit a PR.

License

MIT © Soumendra Kumar Sahoo