A config format that's strict enough to parse unambiguously and friendly enough to read.
{
"title": "My App",
"database": {
"host": "localhost",
"port": 5432,
"enabled": true,
"credentials": {
"user": "admin",
"password": "secret123"
}
},
"server": {
"workers": 4,
"debug": false,
"allowed_hosts": [
"localhost",
"example.com"
]
}
}TOML (Tom's Obvious, Minimal Language) was designed as a less surprising YAML. It uses INI-style sections, explicit string quoting, and native dates.
If you've edited a `Cargo.toml` (Rust), `pyproject.toml` (Python), or `wrangler.toml` (Cloudflare), you've used it.
Compared to YAML: stricter, no whitespace pitfalls, but less compact for deeply nested structures.