Configuration
Secure .env Formatter
Sort keys, strip duplicates, and normalize syntax — entirely in your browser. Sharp edges. Zero radius. No server.
Clean output · 4 keys · 1 duplicate resolved
API_URL=https://api.example.com/v2 DATABASE_URL=postgres://user:pass@localhost:5432/db FEATURE_FLAG=true WELCOME_MESSAGE="Hello world"
Diagnostics
- L2 · WARNING · Space after "=" — will be trimmed unless the value is quoted.
- L4 · INFO · Duplicate key "API_URL" — later declaration wins.
- L6 · WARNING · Value for WELCOME_MESSAGE contains spaces and was unquoted — will be quoted in output.
About this tool
Why format .env in the browser?
Environment files often contain secrets. This utility sorts keys, keeps the last duplicate, quotes values that need it, and surfaces syntax diagnostics without uploading anything.
FAQ
Are my secrets stored?
No. Processing is in-memory in your tab. Refreshing the page clears the editor unless your browser restores form state.
Which duplicate wins?
Later declarations override earlier ones for the same key, matching typical dotenv “last wins” behavior.