Show HN: Jev schema builder from TypeScript Type with Typia

Category: devtools

Tags: typescript, runtime-validation, json-schema, llm, protocol-buffers, code-generation

Score: 8.3/10 (Innovation: 8, Technical: 9, Documentation: 8, Utility: 8)

Typia is a TypeScript transformer library that generates runtime validators, JSON schemas, serializers, Protocol Buffer codecs, and LLM function calling harnesses directly from TypeScript types at compile time. It eliminates the need for separate schema definitions and runtime reflection, offering extreme performance (up to 20,000x faster validation) and high accuracy for LLM structured outputs.

Target audience: backend developers, full-stack developers, TypeScript developers, AI engineers

Repository: https://typia.io/blog/jev/ · TypeScript · MIT · 5948 stars

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