Free .env parser & validator
Inspect environment files locally before committing or sharing — secrets never leave your tab.
How to use this tool
- 1
Open .env parser
Use it for this task: .env validation, key listing, duplicate detection, normalized export copy - in-browser.
- 2
Paste one or two .env files
Use parse mode for one file, or compare mode to place two .env files side by side.
- 3
Review keys and differences
Copy the cleaned table or use the highlighted added, removed, and changed values to fix your config.
Quick facts
| Runs offline? | Yes — after load, processing stays in your browser. |
|---|---|
| Uploads data? | No. Your input is not sent to our servers. |
| Account required? | No signup or login. |
| Locales? | UI in 7 languages; tool logic is locale-agnostic. |
Top use cases
- .env validation, key listing, duplicate detection, normalized export copy - in-browser.
- Runs offline?: Yes — after load, processing stays in your browser.
- Uploads data?: No. Your input is not sent to our servers.
- Account required?: No signup or login.
- Locales?: UI in 7 languages; tool logic is locale-agnostic.
FAQ
Does my data leave this device?▾
No. This tool runs in your browser tab; we do not receive your input.
How is this different from desktop software?▾
No install — open and use. Best for quick, small jobs.
How large can inputs be?▾
Limited by device memory. Very large inputs may be slow — split batches if needed.
Mobile browsers?▾
Modern mobile browsers work; heavy jobs are smoother on desktop.
How accurate are results?▾
We use standard Web APIs; verify critical outputs yourself.
How to report issues?▾
Use the Contact link in the site footer.