Are comments preserved when converting TOML to YAML?

No. The TOML is parsed into data first, and comments are not part of that data, so they are not carried into the YAML.

How do TOML tables look in YAML?

A [server] table with keys under it becomes a server: mapping with those keys indented beneath it. Dotted table names like [a.b] become nested mappings.

TOML to YAML Converter Online

Convert TOML configuration documents into clean, human-readable YAML.

About TOML to YAML

Convert a TOML document into block-style YAML. Tables become nested mappings, arrays of tables become sequences of mappings, and dates are written as ISO 8601 strings. You can choose 2 or 4 space indentation and sort keys alphabetically.

Common uses

Move configuration from a TOML file into a YAML-based tool
Compare a TOML config with an equivalent YAML layout
Convert a TOML example from documentation into YAML

FAQ

Are comments preserved when converting TOML to YAML?: No. The TOML is parsed into data first, and comments are not part of that data, so they are not carried into the YAML.
How do TOML tables look in YAML?: A [server] table with keys under it becomes a server: mapping with those keys indented beneath it. Dotted table names like [a.b] become nested mappings.