GraphQL to TypeScript Types: Free Online GraphQL-to-TypeScript Converter — How-To Guide

If your frontend talks to a GraphQL API, you end up writing the same TypeScript type declarations over and over — for every object type, input type, and enum in your schema. ToolsFam's GraphQL to TypeScript Types tool extracts GraphQL types and converts them into clean TypeScript declarations you can paste straight into your project. It's free, needs no signup, and runs entirely in your browser.

Try it free: GraphQL to TypeScript Types

What the Tool Does

Point it at GraphQL type definitions — type, input, and enum blocks from your schema — and it produces matching TypeScript type declarations. The conversion is best-effort local analysis: great for quick reviews, debugging notes, code-review prep, and documentation examples. For regulated production changes, always verify the final output with your project's own compiler or CI checks.

Because the tool runs in the browser, there's no waiting for a server and no queue — paste, convert, copy, done.

How to Use It: Step by Step

1. Open the tool. Go to GraphQL to TypeScript Types — no account or install required.
2. Paste your GraphQL types. Drop in real type definitions from your schema, e.g.:

   type User {
     id: ID!
     name: String!
     email: String
     role: UserRole
   }

   enum UserRole {
     ADMIN
     MEMBER
   }

1. Run the conversion. Click the convert/generate action to parse the input.
2. Review the findings. Read through the generated TypeScript — check that nullable vs. non-null fields, enums, and input types came across the way you expect.
3. Copy or download. Copy the declarations to your clipboard or download them as a text report. Use the reset action to clear the input when you're done.

Practical Tips

• Convert schema-first, then queries. Generate base types from your object and input definitions first; it's much easier to hand-write query response shapes on top of accurate base types than to build everything from scratch.
• Use the output as a review draft. The generated types are ideal for code-review prep and QA handoff — they document exactly what shape the API returns, even if your team ultimately generates types with a dedicated codegen pipeline.
• Keep a samples file. Paste the GraphQL input and generated TypeScript side by side into a docs file or PR description. Future you (and your reviewers) will thank you when the schema changes.

FAQ

Does the tool upload my schema to a server?
No. The normal workflow runs locally in your browser. Your GraphQL input never leaves your device.

Is this a replacement for graphql-codegen or CI type checks?
No. It provides best-effort local analysis for quick debugging and review — it can't match a full compiler or hosted scanner. Verify production-critical types with your own toolchain.

What can I do with the output?
Copy it into your project as TypeScript type declarations, or download a text report. Both options work offline once the page has loaded.

Do I need to create an account?
No account is required, and the tool is completely free.

Privacy Note

GraphQL to TypeScript Types runs 100% in your browser — your schema and generated code never leave your device. That makes it safe to use on private or internal APIs without sending anything to a third party.

Try it free: GraphQL to TypeScript Types