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Convert JSON objects into clean TOML for config files, tooling, and documentation.
Top-Level Items
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Output Lines
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Input Size
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Output Size
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Drop a file here
or paste directly in the input editor.
JSON Input
TOML Output
This converter parses JSON in your browser, validates TOML-compatible values, and writes readable TOML.
This tool is built for developers, analysts, and data teams who need a fast, private way to convert structured data without installing a desktop app or sending files to a server.
Convert payloads into the format your endpoint, test fixture, or documentation needs.
Move structured records between config files, spreadsheets, and JSON-based systems.
Prepare clean examples for pull requests, support tickets, docs, and automated tests.
Keep everyday conversion work local in the browser instead of uploading sensitive data.
Input JSON example:
{
"app": {
"name": "jsonkit-api",
"version": "1.0.0",
"enabled": true,
"ports": [3000, 3001],
"database": {
"host": "localhost",
"port": 5432,
"ssl": false
}
}
}Output TOML example:
[app] name = "jsonkit-api" version = "1.0.0" enabled = true ports = [ 3000, 3001 ] [app.database] host = "localhost" port = 5432 ssl = false
Yes. It is free and runs directly in your browser.
No. TOML has no null value, so the tool shows a clear error when null appears.
Yes. You can copy the TOML or download it as a .toml file.