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JSON to TOML Conversion

Convert JSON data to TOML format. Useful for config files (e.g. Cargo.toml) and tool settings. Enter text or upload a file (up to 100KB) and see real-time conversion results.

JSON Input
TOML Output
Read Only

How to use

About this tool

Converts JSON strings to TOML.

How to use

Paste JSON; the TOML output can be copied.

Use cases

β€’ Converting JSON to TOML for config files (e.g. Cargo.toml) β€’ Tool config format conversion β€’ Readability

Code Examples

JSON input example (before)
Read Only
1{
2  "package": {
3    "name": "my-app",
4    "version": "1.0.0"
5  },
6  "database": {
7    "host": "localhost",
8    "port": 5432,
9    "enabled": true
10  }
11}
TOML output example (after)
Read Only
1[package]
2name = "my-app"
3version = "1.0.0"
4
5[database]
6host = "localhost"
7port = 5432
8enabled = true
9

How it works

β–  What is JSON? JSON (JavaScript Object Notation) represents key-value pairs, arrays, and nested objects as text. Commonly used for API requests/responses and data exchange. β–  What is TOML? TOML (Tom's Obvious, Minimal Language) is a human-readable format for config files. It supports key=value pairs, [sections], arrays, dates, integers, floats, and booleans. Widely used in Rust (Cargo.toml), Python (pyproject.toml), and elsewhere. β–  How conversion works The tool parses the JSON into an object and serializes it to TOML. All processing runs in the browser.