Are TOML comments preserved?

No. JSON does not support comments, so they are discarded during conversion.

How are TOML dates converted?

TOML date/datetime values are converted to ISO 8601 date strings in JSON.

Can I convert back to TOML?

Yes. The conversion is reversible for most data structures, though comments will be lost.

Convert TOML to JSON Online Free

Free online TOML to JSON converter with instant results

Converting TOML to JSON allows you to process configuration files programmatically, validate them with JSON Schema, or use them in APIs and tools that expect JSON input.

Try the TOML to JSON Converter

Use our free TOML to JSON to convert toml to json instantly — no signup required.

Open TOML to JSON

How to Convert TOML to JSON

1Paste your TOML content
2The tool parses and converts to JSON
3Review the structured output
4Copy or download the JSON file

Common Use Cases

Parsing Cargo.toml for build tooling

Processing pyproject.toml in scripts

API integrations that need JSON config

Migrating TOML configs to JSON-based systems

Why Convert to JSON?

Universal API compatibility
Native JavaScript/TypeScript support
JSON Schema validation available
Easier to process programmatically

Frequently Asked Questions

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