TOML to YAML Converter
Convert TOML to clean YAML, compare how both formats express nested data, and review what changes during conversion.
TOML to YAML Converter
YAML to TOML Converter
TOML to JSON Converter
TOML to JS Object Converter
JSON to YAML Converter
JS Object to YAML Converter
Convert TOML to clean YAML, compare how both formats express nested data, and review what changes during conversion.
About the TOML to YAML converter
How TOML structure maps to YAML
The converter parses TOML and writes the same data structure as YAML. Tables and inline tables become nested mappings, while arrays of tables become YAML sequences of mappings. This changes data syntax only; it does not turn Cargo.toml or pyproject.toml into Kubernetes, Docker Compose, or CI configuration.
Date-like values and layout need review
TOML date-like values are parsed and emitted as YAML scalars by the serializer. Comments, blank lines, and original table layout are not preserved, so review hand-maintained configuration files after conversion.
FAQ
Common questions and answers about this topic.
What is the difference between TOML and YAML?
TOML favors explicit tables, clear key-value configuration, and built-in date and time types. YAML uses indentation for nesting and can express the same data more compactly, but spacing is part of its syntax. TOML is common in Rust and Python project files; YAML is common in deployment and automation files. Converting between them changes representation, not the meaning required by a specific tool.
Can I customize the YAML indentation?
Yes, the YAML output indentation is adjustable from 2 to 8 spaces through the formatting options. For YAML files used in Kubernetes or Docker Compose, 2 spaces is the standard convention.
Can I sort the keys alphabetically?
Yes, the sort keys dropdown offers the option to alphabetically arrange all YAML mapping keys (A to Z) or keep the order from your original TOML tables. This sorting recurses into every nested mapping level.
Is my data sent to any server?
No, the TOML-to-YAML conversion takes place entirely within your browser. Your TOML data is transformed locally via JavaScript and never leaves your device.