TOML Editor
Free online TOML editor tool, syntax validation supported
What is TOML?
TOML (Tom's Obvious Minimal Language) is a configuration file format designed to be easy to read and write. It uses key-value pairs, tables ([section]), and arrays of tables ([[section]]). TOML is used by Rust's Cargo, Python's pyproject.toml, and many other tools.
How to Edit and Validate TOML
Paste or type TOML content in the editor. The tool validates syntax in real time and shows statistics like section count and key count. Fix any highlighted errors to produce valid TOML.
▶What is the difference between [table] and [[array]]?
[table] defines a single table (section). [[array of tables]] defines an element in an array of tables, allowing you to create lists of similar structures.
▶How is TOML different from YAML?
TOML uses a simpler syntax that is easier to parse correctly. It does not rely on indentation and has a stricter, less ambiguous specification. YAML is more flexible but more prone to parsing surprises.