.env File Validator & Linter
A broken .env file is a common source of deploy failures — a missing quote, a duplicate key, or a variable your app expects but nobody set. This tool checks syntax and flags issues before you ship.
How to Use .env File Validator & Linter
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Paste .env Content: Paste your raw .env or .env.example file into the validator.
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Set Required Keys: Optionally paste a list of expected required variables to check.
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Audit & Lint: Review syntax warnings, duplicate key flags, and weak secret alerts.
Frequently Asked Questions
- Does this tool store or transmit my .env file?
- No — validation happens entirely in your browser; nothing is uploaded.
- Can it check for missing required keys?
- Yes, if you provide a list of expected keys to check against.
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