.env File Validator

Check for syntax errors, duplicate keys, and accidentally hardcoded secrets.

Your .env file never leaves your browser.

Why validate .env files?

A single typo in your .env file can break your entire application. Duplicate keys silently override each other, unquoted values with spaces cause parsing errors, and hardcoded secrets can leak into version control.

What secrets does it detect?

The scanner checks for common secret patterns including AWS access keys, RSA/EC/DSA private keys, GitHub personal access tokens, Stripe secret keys, and Slack tokens. If a value matches a known pattern, you'll get an immediate warning.

Need to share .env variables with your team?

Send them via an encrypted, self-destructing link instead of Slack or email. Zero knowledge — the server never sees your secrets.