YAML Tools
YAML to .env Converter
Convert YAML config into KEY=VALUE .env lines.
Loading tool…
What is YAML → .env?
A YAML→.env converter that flattens nested objects and arrays into flat KEY=VALUE pairs suitable for dotenv-style config.
How it works
The YAML is parsed, then walked recursively: object keys nest with '__', array indexes become numeric suffixes, and scalars stringify to values.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Config to environment
Flatten a nested YAML config into KEY=VALUE pairs for .env files — nested keys become dotted or underscored names.
Common mistakes
Nested key naming collisions
Flattened keys can collide (db:host vs db.host). The converter flags duplicates so nothing silently overwrites.
Frequently asked questions
How are arrays represented?
As JSON or comma-separated values, selectable per use case.
Does it quote values correctly?
Yes — values with spaces or special characters are quoted per .env conventions.