.env File Formatter & Validator

Frequently asked questions

Does one malformed line stop the whole file from formatting?

No — malformed lines and duplicate keys are collected as issues and reported alongside the output, rather than thrown as a hard error that blocks formatting the rest of a file with 50 otherwise-valid entries.

Does it flag duplicate keys?

Yes — a repeated key is reported as an issue that references the line the key was first seen on, so you can tell which definition wins.

Does formatting change the order of my keys?

Yes, deliberately — output is sorted alphabetically by key, which makes diffs between versions of a .env file easier to read.

Are comments and blank lines preserved?

Comments (lines starting with #) and blank lines are skipped when parsing and not reproduced in the sorted output — the formatter re-serializes only the key/value entries.

Is my .env file uploaded anywhere?

No. Formatting and validation happen locally in your browser tab — nothing is sent to a server.