TOML Formatter & Validator
Format and validate TOML files with line-aware error reporting, TOML-aware table detection, key sorting, and copy/download output. Free by Graph Tools.
Use this free TOML formatter and validator to format and validate TOML configuration files. Paste any TOML content to get clean, properly ordered output with TOML-aware table and array-of-tables formatting. Validation reports syntax errors with line numbers and describes the rule being violated. Useful for developers working with Rust projects, Hugo static sites, Python tooling configs, and any tool using TOML as its configuration format.