YAML ↔ JSON ↔ TOML Converter

Convert YAML, JSON, and TOML locally in your browser with multi-document YAML support and anchor resolution.

Your config data stays in your browser. No uploads, no API calls, no backend parsing.

Multi-document YAML is supported, and anchors are resolved locally before conversion.

Source
Converted output

Frequently Asked Questions

Can it handle multi-document YAML?

Yes. When the input contains multiple YAML documents separated by --- the converter keeps them together and can export them as a JSON array or YAML multi-doc output.

Why can't multi-document YAML convert directly to TOML?

TOML is best suited to a single object document. If you paste multiple YAML documents, convert them to JSON first or merge them before exporting to TOML.

Are YAML anchors and aliases resolved?

Yes. Anchors and aliases are resolved in the browser before the converted output is generated.