.env Formatter & Validator
Clean up .env files: normalize spacing, validate keys, find duplicates and syntax errors, sort alphabetically and convert to JSON. Everything runs in the browser.
Frequently asked questions
What is a .env file?
A file with environment variables in KEY=VALUE format. Applications read it to get settings like API keys without hard-coding secrets in the source.
What errors does the validator catch?
Lines without "=", invalid key names (spaces or digits first), duplicate keys and unbalanced quotes in values.
Are my secrets safe?
Yes — processing happens entirely in your browser. Nothing is uploaded to a server, so API keys stay on your device.