Free .env Diff Checker

Paste two .env files to see what’s missing, added, or changed. Perfect for syncing local, staging, and production environments.

When to use this

• Syncing .env with .env.example before committing
• Comparing staging vs production configs
• Onboarding — checking if a new developer has all required variables
• Debugging “works on my machine” issues caused by missing env vars

Security

This tool runs entirely in your browser. Nothing is sent to any server. Still, avoid pasting real production secrets into any tool — use placeholder values when possible.