YAML to TOML
Paste YAML settings to create a TOML configuration file. Values TOML cannot represent are reported before download.
Privacy & Security
All files are processed locally in your browser. Your data never leaves your device and is not uploaded to any server. We do not store, collect, or have access to your files.
How It Works
- 1
Paste YAML containing an object of named settings
- 2
The tool parses YAML structure and validates syntax
- 3
Review the TOML output or resolve any unsupported values
- 4
Copy the result or download as .toml file
Use Cases
Migrate configuration files from YAML to TOML format
Convert Docker Compose files or CI/CD configs
Prepare configs for Rust projects (Cargo.toml)
Convert Python configs to TOML for pyproject.toml
Standardize configuration files across projects
Frequently Asked Questions
What is TOML and why use it?
TOML (Tom's Obvious Minimal Language) is a config file format designed to be easy to read. It's popular in Rust, Python, and many modern tools for its clarity and simplicity.
Are complex YAML features supported?
Objects, arrays, strings, numbers, and booleans can be converted when they have a TOML equivalent. Date-like YAML text stays a string; null and unsupported types produce an error instead of an incomplete file.
Can I convert large config files?
Conversion runs in your browser. Large inputs may take longer or exceed your device memory; review the generated output before using it as a configuration file.
Is the conversion bidirectional?
No. This tool converts pasted YAML settings to TOML; it does not convert TOML back to YAML.
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