TypeMorph for VS Code

Convert JSON, YAML, OpenAPI, and JSON Schema to Zod, TypeScript, Go, Rust, Prisma, and 160+ formats — directly in your editor.

Press Ctrl+Shift+T on any JSON or YAML file. That's it.

Why TypeMorph is different

Most converters output z.string() for every string field. TypeMorph reads the actual values:

Input JSON                 TypeMorph              Other tools
──────────────────────     ─────────────────────  ────────────
"id": "a1b2-c3d4..."   →  z.uuid()               z.string()
"email": "x@y.com"     →  z.email()              z.string()
"site": "https://…"    →  z.url()                z.string()
"ts": "2024-01-01T…"   →  z.iso.datetime()       z.string()
"age": 25              →  z.number().int().min(0) z.number()
"role": "admin"        →  z.enum(["admin","user"])z.string()

Features

• 160+ output formats — Zod v4, TypeScript, Go, Rust, Python (Pydantic), Java, C#, Swift, Kotlin, Dart, Prisma, Drizzle, SQL, GraphQL, Protobuf, MCP tool, OpenAI function calling, Vercel AI SDK, and more
• Real type inference — detects uuid, email, url, datetime, int vs float, and enums from actual values
• Schema Quality Score — grades your schema A–F and lists field-level improvements
• Reverse mode — generate a JSON sample from a TypeScript interface
• OpenAPI & JSON Schema aware — auto-detects and parses multi-component specs
• 100% local — no network requests, no API keys, your data never leaves your machine

Usage

Convert a schema (Ctrl+Shift+T)

1. Open any .json or .yaml file
2. Press Ctrl+Shift+T (Mac: Cmd+Shift+T)
3. Pick a target format from the quick-pick list
4. Output appears instantly in a side panel with syntax highlighting

You can also select part of a file and convert just that selection.

Check schema quality

Right-click in the editor → TypeMorph: Check Schema Quality

Returns an A–F grade with a breakdown of issues:

• Fields typed as any
• Missing format constraints (uuid, email, datetime…)
• Mixed camelCase / snake_case naming
• Overly deep nesting

Generate a JSON sample from TypeScript

Right-click in a .ts file → TypeMorph: Generate JSON Sample from Interfaces

Useful for seeding tests or mock data.

Commands

Supported input formats

Popular output formats

Fully tested TypeScript · Zod v4 · Go · Rust · Python (Pydantic) · Java · C# · Swift · Kotlin · Dart · Prisma · GraphQL · Protobuf · JSON Schema · MySQL · PostgreSQL

AI tools MCP tool definition · OpenAI function calling · Vercel AI SDK tool

More Drizzle · Kysely · Mongoose · TypeORM · Sequelize · Yup · Joi · Valibot · React Props · Vue Props · OpenAPI · Postman · cURL · Mermaid · and 130+ more

Run npx typemorph-cli list for the full list.

CLI companion

For CI pipelines and scripting, install the CLI:

npm install -g typemorph-cli

# Convert
curl -s https://api.example.com/users/1 | npx typemorph-cli zod --root User

# Detect API schema drift (no OpenAPI spec needed)
curl -s https://api.example.com/users/1 | npx typemorph-cli check --baseline .typemorph/users.json

Web version

Need to share a conversion or use it without installing? typemorph.dev — same engine, 100% browser-based.

License

MIT — github.com/yhan86818-creator/typemorph