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Env Formatter

Organize, validate and analyze .env files: sort alphabetically, group by prefix, detect duplicates and flag sensitive keys.

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.env File Formatter — Sort, Deduplicate, and Organize Env Variables

The .env File Formatter sorts, deduplicates, groups by prefix, and cleans up environment variable files used in modern application development. Paste your messy .env file and get a well-organized, consistent output ready for your project.

The tool parses each line as a KEY=VALUE pair, strips extra whitespace, removes duplicate keys (keeping the last occurrence), and sorts entries alphabetically. It can also group variables by common prefixes (e.g., DB_, AWS_, SMTP_) with blank-line separators, preserving comments and placing them alongside their associated variables.

Back-end developers use this tool to clean up .env files that have grown disorganized over months of development. DevOps engineers format environment configs before committing .env.example files to repositories. Team leads use it to standardize environment variable naming conventions across projects.

.env File Formatter is part of the facilita.tools suite of free browser-based developer utilities. Available in Portuguese, English, and Spanish, optimized for desktop and mobile browsers.

Frequently Asked Questions

How does it handle duplicate variables?
When duplicate keys are found, the tool keeps the last occurrence and removes earlier ones. This matches how most .env parsers (dotenv) behave at runtime.
Does it preserve comments in the file?
Yes. Lines starting with # are treated as comments and kept in the output. Inline comments after values are also preserved.
Is my .env data sent to a server?
No. All processing happens entirely in your browser. Your environment variables, which often contain secrets and API keys, never leave your machine.