JSON code generation / Go

Free online JSON to Go struct generator

Generate tagged Go structs from nested telemetry. Open your JSON locally, then inspect and download the generated files.

Privacy-first processing: pasted or opened JSON stays in this browser tab and is not uploaded to our servers.

Target: GoChoose serializer and model options in the workbench

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Try the sensor reading example

The editor starts empty. Load this example only if you want a small source to test the generated model.

Static example with expected output

Verified with the local schema-codegen engine.

Telemetry JSON

{
  "device": {
    "serial_no": "SN-204",
    "zone": "west"
  },
  "temperature": 21.75,
  "online": true
}

Operation

Generate Go structs with JSON tags.

Language: Go
Package: generated
Serializer: none
File layout: split files

Expected output excerpt (GeneratedRoot.go)

type GeneratedRoot struct {
    Device GeneratedRootDevice `json:"device"`
    Online bool `json:"online"`
    Temperature float64 `json:"temperature"`
}

Caveat: The decimal reading maps to float64 with the default numeric policy.

Before using this output

JSON tags preserve keys, but custom numeric codecs are not generated. Separate files avoid the current single-file import-order limitation.

Generation analyzes the source shape; it does not validate every future input. Review the language, serializer, enum, primitive, and file-layout options before downloading.

Read the Go workflow

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