Security

Environment File Inspector

Inspect a redacted or synthetic .env example for common mistakes without uploading its contents.

How this tool works

A dotenv file is easy to misread when a key is repeated, a quote is unclosed, or a value is empty. The report records line numbers and always masks values.

Static checks cannot establish secret validity or safe deployment configuration. Avoid pasting production secrets even with local processing.

Examples

Find a duplicate API_URL key.
Flag an unclosed quote.
Export a value-redacted report.

Common use cases

Check a synthetic deployment template for duplicate keys.

Worked synthetic example

Valid example

API_URL=sample API_URL=other

Expected: Duplicate API_URL finding with values masked. The report reveals a configuration collision without displaying the values.

Failure or warning to recognize

Warning / interpretation

API_KEY=live-value copied into a shared report.

Expected: Malformed assignments and unclosed quotes produce line findings; masked output cannot establish that a secret is safe to share.

Official references

Node.js environment variables