YAML to TOML

YAML to TOML converts indentation-based YAML configuration into the table-based TOML format used by tools like Cargo, many Rust and Python projects, and a growing number of config-driven apps.

If you are migrating a settings file or simply prefer TOML for its explicit, unambiguous structure, this tool does the mechanical translation so you do not have to rewrite brackets and quotes by hand.

Paste your YAML on the left and the TOML appears on the right as you type.

The converter understands the common building blocks of real config files: nested mappings become TOML tables with dotted headers, sequences of scalars become inline arrays, and values are typed sensibly so numbers stay numbers, booleans stay booleans, and quoted strings keep their text.

Comments beginning with # and blank lines are ignored, and keys that contain special characters are quoted automatically so the output stays valid.

Because TOML requires a mapping at the top level, the tool will tell you clearly if your YAML starts with a bare list, and it surfaces a readable message pointing at the offending line when something cannot be parsed.

Everything runs locally in your browser, so even sensitive configuration never leaves your machine, and you can copy the finished TOML with one click.