DataToolsLab
YAML Tools

YAML to TOML Converter

Convert between YAML and TOML configuration formats.

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What is YAML ⇄ TOML?

A bidirectional converter between YAML and TOML, the two dominant human-readable config formats, so you can move configs without hand-transcribing.

How it works

YAML is parsed with js-yaml and serialized with the smol-toml library; TOML→YAML reverses that. Types that TOML can't express are reported as errors.

  1. Enter your input. Type or paste your input into the field above — the tool responds instantly.
  2. Review the result. Output updates live as you type. Everything runs entirely in your browser.
  3. Copy or download. Use the Copy button to grab the result, or Download to save it as a file.

Examples

Realistic sample

Paste or type any realistic input — the tool computes the result locally and instantly.

Common mistakes

Expecting a server round-trip

Nothing is uploaded — every tool in this category runs entirely in your browser.

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