Environment Variable Encoder/Decoder

Encode, decode, and format environment variables for secure deployment

Input Environment Variables

Enter environment variables in KEY=value format, one per line

Processing Settings

Encoding Types & Use Cases

Base64

Perfect for binary data and avoiding character encoding issues in configs.

secret123 → c2VjcmV0MTIz

URL Encoding

Encode special characters for URLs and query parameters.

hello world → hello%20world

HTML Encoding

Escape HTML special characters for web applications.

<script> → &lt;script&gt;

Shell Escaping

Escape shell special characters for command line safety.

$HOME/test → \$HOME/test

Security Best Practices

✅ Do:

  • • Use environment variables for secrets in production
  • • Encode sensitive values before committing to version control
  • • Use secret management systems (AWS Secrets Manager, etc.)
  • • Rotate secrets regularly
  • • Validate environment variables at application startup

❌ Don't:

  • • Commit plain-text secrets to repositories
  • • Log environment variables containing secrets
  • • Share encoded secrets without proper access control
  • • Use weak encoding for production secrets
  • • Forget to sanitize environment variables in error messages