TOML ↔ JSON Converter

About TOML ↔ JSON Converter

Convert TOML (Tom's Obvious Minimal Language) to JSON and back. Useful for Cargo.toml, pyproject.toml, GitHub Actions, Hugo, and other config files. Validates syntax in real time, preserves table headers and arrays, and supports inline tables, multiline strings, and date-times.

How to Use TOML ↔ JSON Converter

Quickly convert configuration files between TOML and JSON formats with real-time syntax validation.

1. 1

   Select your desired conversion direction

   Choose whether you want to convert TOML to JSON or JSON to TOML using the toggle interface.

2. 2

   Paste your code into the input

   Copy your Cargo.toml, pyproject.toml, or JSON data and paste it into the primary text area.

3. 3

   Review real-time syntax validation results

   Check for any syntax errors highlighted by the tool to ensure your configuration file is valid.

4. 4

   Copy the converted output data

   Once the conversion is complete, copy the formatted result to use in your project or configuration file.

Estimated time: PT1M

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Convert TOML to JSON Online - Fast & Free Tool

Easily convert TOML to JSON and back. Validate Cargo.toml, pyproject.toml, and Hugo configs with our free online TOML ↔ JSON converter tool. Try it now!