.env Formatter & Validator
Normalize environment variables and catch duplicate keys, malformed lines, and unsafe values.
Batch workspace
Format multiple files locally in one run.
How to use the .env Formatter & Validator
Paste code or file
Paste your raw SHELL text or upload directly.
Configure options
Choose indentation, dialect, or formatting preferences.
Format & export
Click format, then copy, download, or inspect in tree view.
What is a .env Formatter & Validator?
Normalize environment variables and catch duplicate keys, malformed lines, and unsafe values. This tool re-indents and organizes code according to standard style conventions while checking for syntax validity. Everything executes 100% inside your browser, guaranteeing zero latency and complete privacy for API keys, user tokens, and confidential database schemas.
Options Explained
| Option | Description |
|---|---|
| Output mode | Choose normalized environment text or a JSON diagnostic report. |
Frequently Asked Questions
Does this reveal or upload my secrets?
No. Values are processed only in your browser and are never transmitted.
What syntax is supported?
Standard KEY=value assignments, optional export prefixes, comments, quotes, and underscores are supported.
What issues are detected?
The validator detects malformed lines, duplicate keys, empty values, and unquoted values containing spaces.
Does it change variable values?
It preserves values while normalizing key syntax and removing optional export prefixes.
Can I use this for Docker Compose files?
Yes. It is useful for checking the .env files consumed by Docker Compose and local development tools.