env.dev

TOML / JSON / YAML Converter

Convert between TOML, JSON, and YAML formats online. Bidirectional config file converter.

Last updated:

Input Format
→
Output Format
TOML Input
JSON Output
Output will appear here

How to Use TOML / JSON / YAML Converter

  1. 1Select the input format (TOML, JSON, or YAML) using the buttons.
  2. 2Select the desired output format.
  3. 3Paste your configuration data into the input textarea.
  4. 4Click "Copy" to copy the converted output to your clipboard.

Frequently Asked Questions

What is TOML?

TOML (Tom's Obvious Minimal Language) is a configuration file format designed to be easy to read. It is used by Cargo (Rust), pyproject.toml (Python), Hugo, and many other tools.

What TOML features are supported?

The converter handles key-value pairs, sections (tables), strings, numbers, booleans, and arrays. Advanced features like inline tables and datetime values may need manual adjustment.

Is my data sent to a server?

No. All conversion happens entirely in your browser. Your configuration data never leaves your device.

Related Tools

YAML ↔ JSON Converter

Convert YAML to JSON and JSON to YAML online. Instant bidirectional conversion.

JSON Formatter & Validator

Format, prettify and validate JSON data online. Free JSON formatter with syntax checking.