What does TOML Formatter actually do?

The TOML formatter pretty-prints and checks tables, arrays, and basic values. It does not convert TOML to JSON and does not apply Cargo-specific rules beyond the TOML spec.

When should I use TOML Formatter?

Use it when a Cargo.toml or tool config is valid but unevenly spaced.

When should I not use TOML Formatter?

Do not use it to invent missing keys or to migrate a config to another format.

What does TOML Formatter not do?

Not a Cargo or pyproject linter. Does not convert TOML to JSON or YAML.

TOML Formatter

Pretty-print and validate TOML configuration files used by Rust, Python, and CLIs. Free online — runs locally, no upload.

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TOML Formatter