JSON All-in-One
JSON export / TOML
Free online JSON to TOML converter
Move compatible build settings into TOML tables. Open your JSON locally, then inspect the format-specific output and download the full artifact.
Privacy-first processing: pasted or opened JSON stays in this browser tab and is not uploaded to our servers.
Recent successful runs
Only settings and opaque source fingerprints stay in this browser. JSON and results are not saved.
Loading local history...
Try the build configuration example
The editor starts empty. Load the example to inspect how this source shape maps to TOML.
Static example with expected output
Verified with the local WASM export engine.
Build JSON
{
"project": {
"name": "harbor",
"version": "1.2.0"
},
"build": {
"optimize": true,
"jobs": 4
}
}Operation
Convert compatible nested objects into TOML tables.
- Format: TOML
- Tables: object keys
- Unsupported JSON shapes: rejected
Expected TOML
[project]
name = "harbor"
version = "1.2.0"
[build]
optimize = true
jobs = 4
Caveat: JSON null and incompatible mixed arrays cannot be represented by this TOML exporter.
Format constraints
TOML cannot represent all JSON trees, including null and incompatible mixed arrays. Unsupported shapes are rejected.
Opening a large file and exporting it are separate operations. Output size and compatibility depend on the source shape and the selected format.
Read the TOML workflow