JSON tool · Runs in your browser
JSON Formatter
Format JSON online: beautify messy JSON with 2 or 4 spaces or tabs, sort keys, minify it to one line and find errors. Free, runs in your browser.
JSON to Go Struct
Turn JSON into Go structs with json tags and omitempty, ready for encoding/json.
Runs in your browser. Your data never leaves your device.
How to use the JSON to Go Struct
- Paste a sample JSON.
- Choose inline or separate structs.
- Copy the Go code.
About this tool
Generate Go structs from a JSON sample. Field names become exported Go names, each field gets a json tag with the original key, and you can add omitempty. Nested objects can be inline or separate named structs.
Frequently asked questions
Why are field names capitalised?
Go only encodes and decodes exported fields, which must start with a capital letter. The json tag keeps the original key.
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