A .env file formatter organizes environment variables with prefix grouping (DB_, API_, AWS_), alphabetical sorting within groups, and consistent KEY=VALUE spacing per dotenv convention. It validates key names, detects duplicates, and preserves comments — making .env files maintainable across large projects and teams.
Formatted .env will appear here...
Example .env Files
How to Use the .env File Formatter
Large .env files become messy quickly: variables from different systems intermixed, inconsistent spacing around the equals sign, and no clear grouping. A .env formatter organizes variables by prefix, sorts them alphabetically, and normalizes spacing so the file is easy to read and maintain.
Step 1: Paste Your .env File
Copy the contents of your .env file and paste into the input area. The formatter handles any valid dotenv format including KEY=VALUE, KEY="quoted value", KEY='single quoted', and comments starting with #.
Step 2: Configure Sorting Options
Toggle "Sort keys" on to alphabetically sort variables within each prefix group. This is recommended for large files but you may turn it off to preserve manual ordering. Click Format to apply grouping and spacing rules.
Step 3: Validate or Copy
Use Validate to check for common issues: missing values, invalid key names, and duplicate keys. Then click Copy or Download to save the formatted .env file. The .env extension is preserved in the download filename.
dotenv Formatting Conventions
Standard .env convention: no spaces around the equals sign (KEY=VALUE not KEY = VALUE), use quotes when values contain spaces or special characters, use UPPER_CASE key names only. Group related variables by common prefix (DB_ for database, API_ for external services, AWS_ for cloud credentials) and separate groups with a blank line and optional comment header.
FAQ
Is the .env formatter free?
Yes, completely free with no signup required. Format unlimited .env files directly in your browser.
Is my .env data safe?
Yes. All formatting runs entirely in your browser. Your environment variables and secrets are never sent to any server.
What does the .env formatter do?
It groups variables by common prefix (DB_, API_, AWS_, etc.), sorts keys alphabetically within each group, normalizes spacing (no spaces around = per dotenv convention), and preserves comments.
Does the formatter handle quoted values?
Yes. Quoted values (both single and double quotes) are preserved exactly as written, including multiline values inside quotes.
Can I validate my .env file?
Yes. Click the Validate button to check for common issues: missing values (KEY= with no value), invalid key names (keys must start with a letter or underscore), and duplicate keys.
Will the formatter remove duplicate keys?
When you click Format, duplicate keys are detected and the last occurrence is kept (matching dotenv loading behavior). A warning is shown listing any duplicates found.