📖 What is Environment Variable Editor?
The .env Editor helps you manage environment variable files. Paste your .env content and sort variables alphabetically, find duplicates, identify empty values, validate formatting and add comments. Use it when cleaning up environment configs, merging .env files between environments, or checking for missing variables. Everything runs in your browser — your secrets are never uploaded.
💡 Example
Input
DB_HOST=localhost
API_KEY=abc123
DB_HOST=remote.db
SECRET=
Output
⚠ Duplicate: DB_HOST (lines 1, 3)
⚠ Empty value: SECRET
✓ 4 variables, 1 duplicate, 1 empty
🛠️ Common Use Cases
- Finding duplicate environment variables across merged .env files
- Identifying empty or missing values before deployment
- Sorting variables alphabetically for readability
- Comparing .env files between development and production
- Validating .env formatting and syntax
📝 .env File Format
KEY=value — basic variable assignment# comment — lines starting with # are commentsKEY="value with spaces" — quote values containing spacesKEY= — empty value (valid but potentially a mistake)- No spaces around the
= sign in most parsers
⚠️ Common Mistakes
- Committing .env to Git — add .env to .gitignore. Use .env.example with placeholder values instead.
- Spaces around = —
KEY = value may not parse correctly in some tools. Use KEY=value. - Unquoted values with special characters — values containing #, spaces or $ should be wrapped in double quotes
❓ Frequently Asked Questions
Should I commit .env files to Git? ▾
No — .env files contain secrets. Add .env to .gitignore and provide a .env.example file with placeholder values for reference.
What is the difference between .env and .env.local? ▾
Convention varies by framework. In Next.js, .env has defaults, .env.local has overrides (not committed). Check your framework's documentation.
Do spaces around = matter? ▾
Yes — most .env parsers expect no spaces: KEY=value. Spaces may cause the value to include leading/trailing whitespace.
Is my data private? ▾
Yes — all processing runs entirely in your browser. Your data is never sent to any server.
Is this tool free? ▾
Completely free — no login, no usage limits, works offline once loaded.
Yes — completely free, no login required, no usage limits.
Is my data private? ▾
Yes — all processing runs in your browser. Your data is never sent to any server.
Does it work offline? ▾
Yes — once the page is loaded, the tool works without an internet connection.