TOML Converter
TOML to JSON, YAML and back.
JSON
TOML datetimes become ISO strings in JSON and YAML. JSON → TOML needs an object at the top level — arrays and scalars have no TOML document of their own.
About this tool
Convert TOML config files to JSON or YAML, and turn JSON or YAML back into TOML — handy for Cargo, pyproject and Hugo configs. Parsed locally.
It runs completely in your browser — no input is sent anywhere, and this page loads no ads or third-party scripts, so it is safe to use with data you would not paste into a hosted service.