Env diff - Free Browser Tool | Nadhebe

✓ 100% Local — Your secrets never leave the browser

.env (Source / Local)

.env.example (Target / Prod)

Diff Results

Missing Keys Value Mismatches Extra Keys

Click "Compare Files" or type to see differences.

Securely Compare .env Files

Managing environment variables across different environments (local, staging, production) is a common source of bugs. Missing an API key or having a typo in a database URL can bring down your app. This tool allows you to securely compare your `.env` file against `.env.example` or another environment file to instantly spot missing keys or differences.

Privacy First

Because `.env` files contain highly sensitive secrets, passwords, and tokens, you should never paste them into random online tools. Our env-diff tool processes everything 100% locally in your browser. No data is sent to our servers.

Frequently Asked Questions

Common questions about this tool.

Are my .env secrets sent to a server? ▼

Absolutely not. This entire tool runs locally in your browser. Your environment variables, secrets, and API keys are never uploaded or stored anywhere.

What does this tool do? ▼

It compares two .env files side-by-side and highlights missing keys, extra keys, and matching keys with different values. This is incredibly useful for ensuring your local .env matches your production .env or .env.example.

Does it support comments and quotes? ▼

Yes, it intelligently parses standard .env formats, ignoring comments (#) and correctly handling quoted values.