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JSON to TOML Converter

Convert between JSON and TOML formats with a single click. Supports nested objects, arrays, and inline tables.

import TextLineTool from "./_TextLineTool.astro"
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How to use JSON to TOML Converter

  1. Paste your JSON or TOML into the input box above.
  2. Select the conversion direction (JSON to TOML or TOML to JSON).
  3. Toggle Pretty Print for formatted output.
  4. Click Convert to see the result.

What is JSON to TOML Converter?

TOML (Tom's Obvious, Minimal Language) is a configuration file format designed to be easy to read and write. Many developer tools and package managers (Cargo, pip, Go) use TOML for their configuration files.

This two-way converter handles nested objects, arrays, array-of-tables, inline tables, booleans, numbers, and multiline strings. Switch direction to convert TOML back to JSON.

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FAQ

What is TOML?
TOML (Tom's Obvious, Minimal Language) is a configuration file format that aims to be easy to read due to its clear semantics. It's used by many tools including Rust's Cargo, Python's pyproject.toml, and Go modules.
Does it support nested objects?
Yes. Nested JSON objects become TOML [section] and [section.subsection] headers.
Can I convert TOML back to JSON?
Yes. Use the direction dropdown to switch from TOML to JSON mode.
Is my data uploaded anywhere?
No. All conversion happens in your browser. Nothing is sent to any server.

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