Visually manage environment variables with key-value editing, grouping, validation, and multi-format export
Zero Dependencies ยท Works OfflineThe .env File Editor is a free online developer tool that provides a visual interface for managing environment variables. Say goodbye to tedious plain text editing โ edit key-value pairs in a table format, automatically identify groups and comments, validate common configuration errors, and export to 6 formats including .env, JSON, YAML, Docker, TOML, and Shell. All operations run locally in your browser โ sensitive configuration data is never uploaded to any server.
1. Drag a .env file onto the import area, or paste .env file content in the text box.
2. Click "Parse" to automatically identify all key-value pairs, groups, and comments.
3. Modify key names and values directly in the visual editor. Add or delete variables as needed.
4. Click "Validate" to check for configuration issues and fix errors based on the prompts.
5. Select an export format and copy or download the result. Use Ctrl+Enter to quickly parse, Ctrl+Shift+C to copy results.
When switching between multiple environments (dev/test/prod), use this tool to visually edit different .env files, avoiding manual editing errors and quickly comparing and adjusting configuration differences.
Operations teams export .env files to Docker env-file format for use with docker-compose. The tool automatically handles format differences, ensuring environment variables are correctly passed to containers.
Team members quickly sync .env configurations via share links. New members can import project environment variables with one click, reducing "it works on my machine" issues.
Convert .env format to JSON or YAML to adapt to different framework configuration needs. For example, when migrating from a Node.js project to Python, convert environment variables to config files.
The .env file format originated from Unix Shell's environment variable export convention, popularized by the dotenv library. The standard format is KEY=VALUE, one variable per line, with # for comments. Values can be wrapped in single or double quotes, supporting multiline values and escape characters within quotes. Best practices: never commit .env files to version control (add to .gitignore), use secret management services in production, and use .env.example templates in development. The 12-Factor App methodology recommends storing configuration in environment variables for strict separation of code and configuration.
A .env file is an environment variable configuration file in the project root directory, storing sensitive configurations like database connections and API keys in KEY=VALUE format.
Supports export to .env, JSON, YAML, Docker env-file, TOML, and Shell export formats, covering different deployment scenarios.
Completely safe. All editing and export operations run locally in your browser. Environment variable data is never uploaded to any server.
The tool automatically recognizes single and double quoted values, preserving spaces and special characters within quotes.
Yes, line comments starting with # are supported. The editor preserves comment content and correctly outputs them during export.
The built-in validator checks for common issues: empty values, duplicate keys, invalid key names, missing required variables, etc.
Yes. Simply drag a .env file onto the editor area to automatically parse and load all key-value pairs.