ArkType
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arktype.io
ArkType
@arktype.io
TypeScript's 1:1 validator, optimized from editor to runtime ⛵

http://github.com/arktypeio/arktype
👋http://arktype.io/discord
November 12, 2025 at 6:13 PM
ArkType
TypeScript's 1:1 validator, optimized from editor to runtime
arktype.io
November 7, 2025 at 3:26 PM
arkregex is ridiculously optimized.

even expressions like this are inferred instantly.

but what about the most extreme cases?🧵
November 6, 2025 at 6:52 PM
try writing a parser and you'll hate it even more
November 6, 2025 at 3:30 PM
ArkType Docs
TypeScript's 1:1 validator, optimized from editor to runtime
arktype.io
November 5, 2025 at 2:26 PM
arkregex is meant to be a zero-effort, drop-in replacement for new RegExp().

in the vast majority of cases, it makes your life easier.

for the rest, just don't use it👍
November 5, 2025 at 2:26 PM
option 2: just use new RegExp() for those cases if you don't care about those types
November 5, 2025 at 2:26 PM
option 1: use regex.as to declare a simplified version of your pattern and capture groups
November 5, 2025 at 2:26 PM
we've been surprised by some of the real-world expressions it can handle, but you'll still hit the limits of typescript eventually, so what then?
November 5, 2025 at 2:26 PM
ArkType Docs
TypeScript's 1:1 validator, optimized from editor to runtime
arktype.io
November 3, 2025 at 5:46 PM
ArkType
TypeScript's 1:1 validator, optimized from editor to runtime
arktype.io
October 30, 2025 at 4:31 PM
it's literally deterministic
October 29, 2025 at 9:41 PM
Yep that's ArkType!
October 28, 2025 at 11:16 PM
> WTF!? but in a good way

new arktype tagline just dropped
October 28, 2025 at 6:59 PM
arkregex is a standalone, type-only package that adds types to RegExp.

if you prefer...
🔎 clarity over opacity
🔒 safety over crashing

using it should be the easiest win of your life.

announcement: arktype.io/docs/blog/ar...
October 28, 2025 at 4:38 PM