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JSON / TOML Converter

Convert JSON objects and TOML documents in either direction.

JSON / TOML Converter
Local input
Output
Processing…
Processed locally in your browserNo input history is saved
About this tool

Made for the task at hand.

Translate structured configuration data with real JSON and TOML parsers. Reverse conversion produces readable two-space JSON, including TOML date values in their serialized form.

How to use

  1. Paste a JSON object or TOML document.
  2. Choose JSON → TOML or TOML → JSON.
  3. Copy the converted output or fix the reported invalid value.
Your work stays yours.
Tool inputs are processed locally in your browser and are never sent to KitVerse servers. Clear the workspace when using a shared device.
Common questions
Can a top-level JSON array be converted to TOML?

No. A TOML document is a root table, so the JSON input must have an object at its top level.

How are JSON null values handled?

TOML has no null scalar, so a null cannot be emitted as TOML and the converter reports an error instead of dropping it.

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