Cargo/pyproject-style TOML parsed to clean JSON locally.
{
"package": {
"name": "my-app",
"version": "1.2.0",
"edition": "2021"
},
"dependencies": {
"serde": {
"version": "1",
"features": [
"derive"
]
},
"tokio": "1"
},
"bin": [
{
"name": "server",
"path": "src/main.rs"
}
]
}📦 TOML 1.0 subset parser — tables, array tables, inline tables, dotted keys, and all numeric formats. Datetimes stay strings (JSON has no date type). Multi-line strings are rejected with the line number instead of mis-parsed.
Rust (Cargo), Python (pyproject), and many modern tools chose TOML for configs because it is diff-friendly and typed: strings are quoted, numbers are bare, dates are unambiguous — no YAML surprise-me typing.
Tables become objects, array tables become arrays of objects, dotted keys nest, integers (including hex/octal/binary and underscore separators) become JSON numbers, booleans map directly. Datetimes stay as ISO strings since JSON lacks a date type.
Multi-line strings and datetime objects are rejected loudly with line numbers rather than silently mangled — a converter that guesses wrong on config files costs hours. Fix the syntax or strip those values first.
The TOML to JSON Converter converts toml to jsonfrom one unit to another using the exact internationally defined conversion factors. Type a value, choose your source and target units, and the converted result is shown instantly — no waiting, no page reload.
Manual conversion is error-prone because it means memorizing ratios (how many feet in a meter, how many pints in a liter). This tool removes that friction: the conversion factor is built in, and the math is done to full precision with no rounding until the final displayed number.
Common uses: people reach for this tool when they need to look up a convert cargo toml to json online, pyproject toml parser javascript, toml 1.0 spec compliant parser, or view toml as json tree.
Browser-based tools like this one have a few real advantages over installed software or manual methods:
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