iiinova — where your digital self keeps evolving

ArkType @arktype.io · 04/03/2026

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.io

ArkType Docs

TypeScript's 1:1 validator, optimized from editor to runtime

010

ArkType @arktype.io · 04/03/2026

@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.

220

ArkType @arktype.io · 04/03/2026

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

250

ArkType @arktype.io · 04/03/2026

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

110

ArkType @arktype.io · 04/03/2026

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

110

ArkType @arktype.io · 04/03/2026

📢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 🧵

1332

ArkType @arktype.io · 23/12/2025

strategy is summarized here: x.com/ssalbdivad/s...

x.com

010

ArkType @arktype.io · 22/12/2025

🛝 playground: arktype.io/playground 📚 docs: arktype.io 👋 discord: arktype.io/discord ⭐ github: github.com/arktypeio/arktype

arktype.io

ArkType Playground

TypeScript's 1:1 validator, optimized from editor to runtime

030

ArkType @arktype.io · 22/12/2025

all you need to "learn" ArkType syntax: 1️⃣ start with a typescript keyword 2️⃣ .autocomplete to discover constraints 3️⃣ compose if needed with &, |, etc.

2201

ArkType @arktype.io · 18/12/2025

Yeah unfortunately without build-time transforms (which come with their own limitations), this is probably about as close as you will get to TypeScript at runtime.

130

ArkType @arktype.io · 18/12/2025

tools are just introspectable functions... what if you could define them like this?🤔

191

ArkType @arktype.io · 17/12/2025

📚 match docs: arktype.io/docs/match 👋 discord: arktype.io/discord ⭐ github: github.com/arktypeio/ar...

010

ArkType @arktype.io · 17/12/2025

wish TS had rust-style pattern matching? (it already does)🪄

2231

ArkType @arktype.io · 16/12/2025

🚨Standard JSON Schema v1 just dropped🚨 🟢libraries can now accept ArkType wherever they need JSON Schema 🟢100% type-safe with inference built-in 🟢day one support from AI SDK 🟢TanStack AI and MCP SDK support imminent

3333

Reposted by ArkType

David Blass @ssalbdivad.dev · 16/12/2025

🎉Announcing Standard JSON Schema🎉 The next spec in the Standard Schema family is here to bring library-agnostic JSON Schema to TS. Let's make sure everyone sees it🔁

1201

Reposted by ArkType

Colin McDonnell 💎 Zod @colinhacks.com · 15/12/2025

Introducing ✨ Standard JSON Schema ✨ It's a sister spec to Standard Schema that provides a common interface for any entity that can be converted to JSON Schema

3726

ArkType @arktype.io · 09/12/2025

📚 docs: arktype.io 👋 discord: arktype.io/discord ⭐ github: github.com/arktypeio/arktype

000

ArkType @arktype.io · 09/12/2025

"bUt StRiNgS aReN'T tYpE sAfE"

130

ArkType @arktype.io · 08/12/2025

📚 docs: arktype.io 👋 discord: arktype.io/discord ⭐ github: github.com/arktypeio/arktype

020

ArkType @arktype.io · 08/12/2025

95% of ArkType syntax is just TypeScript. The other 5% are extensions like this that are... ✅composable ✅consistent across data types ✅100% safe with helpful type-level error messages

1161

ArkType @arktype.io · 05/12/2025

📚 docs: arktype.io 👋 discord: arktype.io/discord ⭐ github: github.com/arktypeio/arktype

010

ArkType @arktype.io · 05/12/2025

once you go type("string") you never go z.back()

1162

ArkType @arktype.io · 04/12/2025

Yeah we considered that syntax but it was cleaner to separate them since it won't always be a string definition that goes there (could be a reference to another type) so for now it just makes it easier to always think about spreading the same way.

010

ArkType @arktype.io · 02/12/2025

📚 docs: arktype.io/docs/blog/arkregex 👋 discord: arktype.io/discord ⭐ github: github.com/arktypeio/arktype

020

ArkType @arktype.io · 02/12/2025

Difficulty of Parsing Regex with TypeScript Types ------------------------------------------------------------ group associativity ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒ everything else ▒▒