Skip to main content
Back to Tools
Web Tools

YAML to TOML Converter

Convert between YAML and TOML configuration formats. Bidirectional conversion with proper table handling, arrays, nested structures. Runs entirely in your browser — your data never leaves your machine.

yaml toml converter config migration

Published May 30, 2026

All interactive tools run entirely in your browser. Your data never leaves your device.

How It Works

Paste YAML or TOML content and instantly convert to the other format. The tool uses built-in parsers for both formats and handles mappings, sequences, scalars, tables, and nested structures.

Features

  • Bidirectional conversion: YAML to TOML and TOML to YAML
  • Full YAML support: mappings, sequences, quoted/unquoted strings, numbers, booleans, null
  • Full TOML support: key-value pairs, tables, arrays, inline structures, strings, integers, floats, booleans
  • Nested structures: properly converts nested mappings to TOML tables and vice versa
  • Array handling: YAML sequences to TOML arrays, TOML array-of-tables to YAML
  • Error handling: clear error messages for invalid input
  • 5 examples: simple config, nested config, Docker Compose, Cargo.toml, server config
  • Private: runs entirely in the browser — no data transmitted

Use Cases

  • Migrating configuration files between YAML-based and TOML-based tools
  • Converting Docker Compose (YAML) config snippets to TOML format
  • Converting Cargo.toml (Rust) to YAML for comparison
  • Quick format exploration when choosing a config format for a project