Santekno/tools
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Go Struct Tag Builder

Build Go structs from JSON with auto-generated json, db, validate, and yaml tags.

Processed in your browserUpdated · Jan 2026
JSON sample
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Go struct
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How to use Go Struct Tag Builder

Paste your input on the left, choose the options you want, and the output appears instantly on the right. Everything runs in your browser — none of your data is sent to a server.

  • Paste or type your input in the INPUT panel
  • The output regenerates automatically as you type
  • Use Copy to put the result in your clipboard
  • Click Sample to load a working example

What is Go Struct Tag Builder?

Paste a JSON sample to generate a Go struct with proper field names (PascalCase) and customizable tags (json, yaml, xml, db, gorm, validate, form, bson). Choose between snake_case, kebab-case, or as-is tag values, with optional omitempty. Saves hours when defining domain models from API responses. This tool is part of santekno's developer toolbox — a curated collection of utilities built for engineers who care about speed, privacy, and simplicity.

Common use cases

  • Debugging API payloads and integration issues
  • Inspecting tokens, hashes, or encoded strings during development
  • Generating fixtures and sample data for tests
  • Sharing readable output with teammates in code reviews

FAQ

Go requires exported fields (capitalized) to be marshaled by encoding/json and similar packages.