Validate .env Before Deploying

Catch config mistakes before they reach production.

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.env contents

💡 Catches duplicate keys, spaces around =, unquoted values, and naming-convention issues — then gives you a cleaned, sorted file and a ready-to-commit .env.example. Your secrets are parsed entirely in your browser and never uploaded.

CI/CD tips

⚙️

A quick lint before deploy catches the duplicate key or stray space that would break config in production.

✅

Aim for zero errors; review warnings for anything that could be misread by your loader.

📋

Keep your committed .env.example in sync with the cleaned key list.

🔒

Nothing is uploaded — safe for production secrets.

Hoe het werkt

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Enter your data into the tool above. Everything stays local to your browser.

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The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

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Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Waarom de onze?

✓Volledig gratis — geen verborgen kosten, ooit

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✓Bestanden verlaten nooit je apparaat

✓Absoluut geen bestandsgroottelimieten

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Also check out…

📋

Generate a .env.example

Create a .env.example from your real .env so teamm

🐞

Debug a Broken .env File

Find why your environment variables aren't loading

🧹

Clean Up a Messy .env

Sort, de-duplicate, and normalise an .env file.

📐

Enforce .env Naming Conventions

Check that environment variable names follow UPPER

Veelgestelde vragen

Back to ENV File Validator