Post

📢ArkType 2.2 is here. This is a big one, and it's long overdue. Validated functions, type-safe regex, bidirectional JSON Schema, and universal schema interop. Here's what's new 🧵

ArkType

@arktype.io

4 Mar

type.fn Define runtime-validated functions using the same syntax you already know. Defaults, optionals, variadics- it all works.

ArkType

@arktype.io

4 Mar

Type-safe regex via arkregex Regex literals in your definitions now carry full type inference. x-prefix parses capture groups at runtime.

ArkType

@arktype.io

4 Mar

Standard Schema validators can now be embedded directly in ArkType definitions. Zod, Valibot, or anything else that implements the spec.

ArkType

@arktype.io

@ark/json-schema — Bidirectional JSON Schema Parse JSON Schema into ArkType Types, and convert Types to JSON Schema. Huge thanks to @TizzySaurus for building this one. toJsonSchema() now supports configurable fallbacks, draft-07/2020-12 targets, and cyclic types.

4/3/26, 7:40 pm0 reposts2 likes

ArkType

@arktype.io

4 Mar

Full announcement: arktype.io/docs/blog/2.2 I couldn't be more hyped to see what you do with it. ⚡ arktype.io/docs/intro/setup ⭐ github.com/arktypeio/arktype 👋 arktype.io/discord If you want to support this work: github.com/sponsors/arktypeio

arktype.ioArkType DocsTypeScript's 1:1 validator, optimized from editor to runtime

spyke

@spyke.bsky.social

4 Mar

I am correct that now I can convert an OpenAPI spec to a JSON Schema and use the result for TS and runtime validation?