.env Validator & Diff

Validate a .env file's syntax (catches missing equals signs, unquoted multi-word values, duplicate keys), or diff two .env files to spot drift between dev and prod environments.

How to use the .env Validator & Diff

Validate: paste your .env. The tool reports duplicate keys, lines missing =, unquoted values that contain spaces (often a bug), and keys with empty values. Diff: paste two .env files — typically your .env.example and your local .env — and see which keys are missing from each.