Show HN: Is-Kit – Lightweight TypeScript Guard and Validator Toolkit

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Hi HN, I built is-kit, a lightweight, zero-dependency toolkit for TypeScript type guards and composable validators.

I made this because I was tired of writing repetitive value is Foo guards and wanted a clean, type-safe alternative.

GitHub: https://github.com/nyaomaru/is-kit
Docs: https://is-kit-docs.vercel.app/en

Would love your feedback on design trade-offs and naming!

Comments URL: https://news.ycombinator.com/item?id=45480912

Points: 1

# Comments: 0

Source: github.com

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October 9, 2025

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