Environment Variable Diff

Summary

Paste two .env files to instantly see which variables were added, removed, or changed between them.

How it works

1. Paste the contents of your first .env file into the left panel.
2. Paste the contents of your second .env file into the right panel.
3. Click "Compare" to analyze both files.
4. Review the diff table: green rows are new variables, red rows are removed, yellow rows show changed values.
5. Unchanged variables are shown in a neutral section so you have the full picture.
6. Click "Copy Summary" to export the diff as plain text.

Use cases

• Audit configuration drift between staging and production environments.
• Verify a .env.example file is in sync with the real .env file.
• Review environment changes in a pull request without running code.
• Identify missing or extra variables when onboarding a new service.
• Compare local and CI/CD environment configs to debug deployment failures.
• Document what changed in a deploy by diffing before/after snapshots.

Frequently Asked Questions