Since sing-box 1.14.0

JSON Schema

sing-box provides a JSON Schema Draft 2020-12 for configuration files. Compatible editors can use it for completion and validation.

Structure

{
  "$schema": "https://sing-box.sagernet.org/schema.json"
}

Fields

$schema

The schema URI used by compatible editors. This field does not affect sing-box runtime behavior.

The schema published with this documentation is available at sing-box.sagernet.org/schema.json.

Generate

Use the following command to generate a schema matching the installed binary:

sing-box schema -o schema.json

Without --output, the schema is written to standard output. The generated schema reflects the features included in the current build.

You can then reference the local schema from a configuration file:

{
  "$schema": "./schema.json"
}