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Dev tools · April 17, 2026

.env Tools

A free, 100% safe tool to view, merge or generate .env files

.env Tools launched on April 17, 2026.

What it does

While you should be vary wary of where you past your/your company'senv files online, I still felt the need to create a more elegant and 100% safe solution (no data strage, processing or uploads) to easily manageenv files. This is a one-stop place for all yourenv needs, including: - View yourenv file and see if you have any issues, including duplicated keys, syntax issues, etc; - Help you merge 2+env files; - Easily generate aenv file with the most commonly used keys

Free online .env file parser and validator. Detect duplicate keys, syntax errors, and malformed values instantly. View your environment variables in a sortable table with line-by-line analysis. No data stored - 100% client-side processing.

Paste a file or drop it below and get every duplicate key, broken quote, and missing value flagged in seconds. It runs entirely in your browser, so the file never leaves your machine. A .env file stores your app's configuration as plain key-value pairs: API keys, database URLs, feature flags, anything that changes between your laptop and production. Frameworks like Next.js, Vite, and Rails read it automatically at startup and load each line into process.env . Keeping that configuration in its own file instead of hardcoded in your source means you can hand a teammate the codebase without handing them your database password, and swap an entire environment by swapping one file. A missing…from env-tools.vercel.app

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