TOML Viewer
View and explore TOML configuration files
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Buy Ad Space – €70/30 daysWhat is a TOML File?
TOML (Tom's Obvious Minimal Language) is a configuration file format that's easy to read due to its clear semantics. It maps unambiguously to a hash table and is designed to be minimal and straightforward.
TOML files are commonly used for:
- Rust project configuration (Cargo.toml)
- Python project metadata (pyproject.toml)
- Hugo static site configuration
- Go module configuration
- Netlify deployment configuration
TOML Viewer Features
- Tree ViewNavigate nested tables and arrays in a collapsible tree structure
- Source View ToggleSwitch between formatted tree and raw TOML source
- Syntax ValidationInstantly detect and highlight TOML syntax errors
- 100% PrivateFiles processed locally in your browser - never uploaded
TOML Viewer FAQ
What is TOML?
TOML (Tom's Obvious Minimal Language) is a configuration file format created by Tom Preston-Werner. It's designed to be easy to read and write, with clear semantics that map unambiguously to a hash table.
How is TOML different from YAML?
TOML uses explicit keys and bracket-based sections rather than YAML's indentation-based syntax. This makes TOML less error-prone and more predictable, though YAML supports more complex data structures like anchors and aliases.
Does it support Cargo.toml?
Yes! Our TOML viewer fully supports Rust's Cargo.toml files, displaying dependencies, features, workspace settings, and all sections in an easy-to-navigate tree view.
Can I view pyproject.toml files?
Absolutely! The viewer handles Python's pyproject.toml files, letting you explore build system requirements, project metadata, tool configurations like Black, Ruff, and pytest settings.