Convert ENV to TOML Configuration
Turn environment variables or .env files into a structured TOML configuration. This tool intelligently groups keys with underscores into nested tables for better organization.
How the ENV to TOML Converter Works
This tool converts environment variable files (.env format) into TOML configuration. Paste your KEY=value pairs and get properly structured TOML output with appropriate sections and type inference.
The converter parses .env syntax, handles quoted strings, comments, and multi-line values. It can group related variables into TOML tables based on key prefixes (DATABASE_URL, DATABASE_HOST → [database] section).
Output is valid TOML with proper quoting, type detection (numbers, booleans, strings), and formatting. Copy into your config.toml file or use it to migrate projects from .env to TOML configuration.
When You'd Actually Use This
Migrating from .env to TOML configs
Moving your project from flat .env to structured TOML? Convert existing environment files. Add hierarchy and organization to your configuration.
Creating deployment configurations
Docker and Kubernetes can use TOML configs. Convert your .env files to TOML for more structured deployment configuration with sections and types.
Organizing environment variables
Large .env files become unwieldy. Convert to TOML, group related settings into sections. Easier to navigate and maintain than flat key-value pairs.
Building configuration documentation
TOML supports comments and structure. Convert .env to TOML, add documentation comments. Better than .env for documenting configuration options.
Standardizing configs across teams
Your team uses .env inconsistently. Convert to TOML with standard structure. Everyone follows the same config format, reducing configuration errors.
Creating config templates
Generate TOML templates from your .env.example files. New team members get structured, documented config templates instead of bare .env files.
What to Know Before Using
.env files are flat, TOML is hierarchical.The converter can group keys by prefix (DB_HOST, DB_PORT → [db] section). Or keep flat structure. Choose based on your needs.
Type inference from strings..env values are all strings. The converter guesses types: "42" → integer, "true" → boolean. Review and adjust types as needed.
Comments are preserved..env comments (# ...) transfer to TOML comments. Use comments to document what each setting does. Helps future maintainers.
Secrets need special handling..env files often contain secrets. TOML files might be committed to git. Consider keeping secrets in .env, config structure in TOML.
Security note: Never commit secrets to version control. Use TOML for config structure, keep secrets in environment variables or secret management systems.
Common Questions
How are variable prefixes handled?
Keys like DATABASE_URL, DATABASE_HOST can become [database] section with url and host keys. The converter detects common prefix patterns.
What about multi-line values?
.env supports multi-line with quotes or escapes. TOML uses literal strings ('''...''') or basic strings with escapes. Converter handles both.
Can I convert back from TOML to .env?
This tool does .env to TOML. For TOML to .env, flatten the structure and output KEY=value pairs. Many TOML libraries can help with this.
How do I handle arrays in .env?
.env doesn't natively support arrays. Common patterns: comma-separated values or indexed keys (ITEM_0, ITEM_1). Converter handles these as TOML arrays.
What about variable interpolation?
Some .env files use $VAR references. TOML doesn't support interpolation. Values with $ are kept as strings. Resolve interpolation before conversion.
Should I commit TOML configs to git?
Commit config templates without secrets. Use config.example.toml in git. Actual configs with secrets stay in .gitignore, deployed via secure means.
How do I load TOML in my app?
Depends on your language: Python has tomllib (3.11+), Rust has toml crate, Node.js has @iarna/toml. Most languages have TOML libraries available.
Other Free Tools
TOML to JSON Converter
Convert TOML to JSON Instantly
JSON to TOML Converter
Convert JSON to TOML Online
TOML Validator and Linter
Validate and Lint Your TOML Files
TOML Beautifier and Formatter
Beautify and Format TOML Code
TOML to YAML Converter
Convert TOML to YAML Easily
ASCII to Hex Converter
ASCII to Hex Converter: Text to Hexadecimal Translator
Barcode Generator
Free Barcode Generator
Binary to Text Converter
Binary to Text Converter
Free Printable Calendar Maker
Create & Print Your Custom Calendar
Pie Chart Maker
Free Pie Chart Maker Online