.env File Validator
Processed locallyValidate .env files. Detect duplicate keys, invalid format, and best practices.
About .env File Validator
The .env File Validator checks your environment files for common issues. Detects duplicate keys, invalid KEY=value format, and deviations from UPPER_SNAKE_CASE convention. Flags potentially sensitive values that might be exposed. Validation runs entirely in your browser. Sensitive values are masked in the UI. Your secrets never leave your device. Supports quoted values, escaped characters, and multi-line env vars. Use before deploying or sharing .env.example files. Essential for DevOps, backend developers, and anyone managing environment configuration.