dotenv Environment Variable Tool
Parse, organize, and transform dotenv text locally, detect duplicate keys, and mask only suspected secret keys by default.
How to use the dotenv Environment Variable Tool
The dotenv Environment Variable Tool processes input only in the current browser and does not upload, connect to the internet, or save user data.
Input content
Paste or load dotenv text, with support for comments, export, quoted values, and variables with empty values.
Select a processing method
Check for duplicate keys, invalid key names, and variable references, then choose JSON, Shell, or TypeScript output.
Check and export
Confirm that only suspected secret values are masked before copying or downloading the result; ordinary configuration values are retained, and sensitive values are not written to logs.
Limitations and Notes
- By default, ${VAR} is not expanded, and shell syntax is not executed or the process environment read.
- Masking is heuristic protection; you must still use your project’s own secret-management method before production deployment.
- The tool only provides locally processed results; important configurations, secrets, documents, and published content must still be reviewed in the target environment.
FAQ
Will the input be uploaded to a server?
No. The page only uses browser memory, the local file API, and local resources already provided with the site.
Why wasn’t ${VAR} replaced?
The tool does not expand variable references by default to avoid incorrect replacements or value leakage when the context is unclear.
Why do the results still require manual review?
Edge-case syntax, regional standards, third-party readers, and target runtime environments may differ; the tool does not replace final validation.