.env File Parser & Validator
Paste a .env file to see every variable, catch duplicates and quoting mistakes, and export as JSON. Nothing is uploaded — parsing happens entirely in your browser.
About this tool
Parses dotenv-style files the way common loaders do — KEY=VALUE lines, # comments, optional export prefixes and single- or double-quoted values — then lints the result: duplicate keys (the later one silently wins in most loaders), empty values, keys containing spaces, unquoted values with spaces, and lowercase keys that break the UPPER_SNAKE convention. One click exports the parsed variables as pretty-printed JSON.
Environment files hold secrets, so this tool is strictly local: your input is never sent anywhere, there is no server or upload, and nothing you paste is logged or tracked. A mask toggle hides values if you're working on a shared screen.