TypeGen
Infer TypeScript types from sample data.
Paste JSON or CSV and TypeGen infers clean TypeScript interfaces (or a Zod schema), explains its assumptions, and flags ambiguous fields you should double-check. It starts at $19/month.
Paste JSON or CSV and TypeGen infers clean TypeScript interfaces (or a Zod schema), explains its assumptions, and flags ambiguous fields you should double-check.
Accepted formats
- Starts at $19/month
- Sample data to TS types
- Built for Developer Tools workflows
What is TypeGen?
Infer TypeScript types from sample data.
Who should use TypeGen?
Operators and builders who need a fast first draft or checklist from TypeGen.
Does it work without an API key?
Yes in explicit Demo mode. Live AI requires a configured key.
Does it guarantee outcomes?
No. Outputs are decision-support; you still review before publishing or acting.
When the output needs a human pass
TypeGen focuses on a single job: Infer TypeScript types from sample data. It automates one small step, but it is not a substitute for testing and review. Check its output against your real setup before you rely on it.
What goes in, what comes out
- Sample data to TS types
- Interfaces / type aliases / Zod
- Explain inferred assumptions
- Flag ambiguous fields
Handling odd inputs
What is TypeGen?
Infer TypeScript types from sample data.
Who should use TypeGen?
Operators and builders who need a fast first draft or checklist from TypeGen.
Does it work without an API key?
Yes in explicit Demo mode. Live AI requires a configured key.
Does it guarantee outcomes?
No. Outputs are decision-support; you still review before publishing or acting.
Does it include SSO, Slack, or bulk CSV?
Only if those features are implemented in this product build — do not assume them from marketing copy.
Where does data go?
Runs may be stored locally under the product's .data/ boundary; treat demos as ephemeral.
How much should I review after TypeGen?
Not a replacement for proper testing, CI, and code review. Validate generated code, schemas, and regexes against your real inputs before shipping.
Who is TypeGen for?
TypeGen is built for engineers and small teams who need this exact job done: Infer TypeScript types from sample data.
Built by Xingliang Li · LX Micro-SaaS Factory — a one-person, curated set of tight-vertical AI tools. How tools are selected →