TOML Tools

View, validate, compare, and convert TOML data

TOML Viewer

Interactive tree view with collapsible nodes, path extraction, and validation

TOML Diff

Compare TOML files with semantic diff and visual highlighting

TOML Converter

Convert between TOML, JSON, and YAML formats

About TOML

TOML (Tom's Obvious Minimal Language) is a configuration file format designed to be easy to read and write. It maps unambiguously to a hash table and is used by many modern tools and frameworks.

Popular uses include Rust's Cargo.toml, Python's pyproject.toml, Hugo static site configs, and many other configuration files. All processing happens in your browser - no data is sent to any server.

Common TOML Files

Cargo.toml - Rust package manifest
pyproject.toml - Python project config
hugo.toml - Hugo site config
netlify.toml - Netlify build config
rustfmt.toml - Rust formatter config

Why TOML?

Minimal and readable syntax
Supports comments (unlike JSON)
Clear data types (strings, integers, dates)
Nested tables for complex configs
Growing ecosystem adoption