.env Formatter & Validator
Parse, validate and reformat any .env file — catch invalid keys, duplicates, and risky values before deploying.
Runs in your browser Lints common mistakes Auto-quotes values
# Database DATABASE_URL=postgres://user:pass@localhost:5432/db # API Keys OPENAI_API_KEY=sk-1234567890abcdef API_BASE_URL=https://api.example.com/v1?token=abc APP_NAME="My Awesome App" DEBUG=true
Variables
5
Errors
0
Warnings
2
L6API_BASE_URLURL with query string — wrap in double quotes for safety
L7APP_NAMEUnquoted value contains whitespace — wrap in double quotes
Parsing happens entirely in your browser. We never log or upload your environment file.
What it does
Parses dotenv-style
Same rules as Node's dotenv — optional export, single/double quotes, comments, and blank lines preserved.
Catches mistakes
Detects invalid keys, missing '=', duplicates, unquoted whitespace, '#' inside values, and likely-empty secrets.
Never uploaded
Your environment variables are sensitive. Everything stays in your browser — we never log or store them.
Frequently Asked Questions
Quick answers about the .env formatter.
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