---
title: "TypeScript & typed logic"
description: "Express complex types, test declarations, and model application logic."
pagination: false
---

{/* Generated from content/. Edit the catalog, not this page. */}

<PurposeNote title="Choose by the job you need to do.">Choose utilities that make your domain easier to understand rather than adding type complexity without a clear benefit.</PurposeNote>

## Choose a library or tool

8 options in this category.

<LibraryIndex category="typescript" />

<LibraryCard libraryId="effect" />

<LibraryCard libraryId="total-typescript-tsconfig" />

<LibraryCard libraryId="true-myth" />

<LibraryCard libraryId="ts-expect" />

<LibraryCard libraryId="ts-pattern" />

<LibraryCard libraryId="ts-toolbelt" />

<LibraryCard libraryId="tsd" />

<LibraryCard libraryId="type-fest" />

## Keep exploring

<CategoryGrid exclude="typescript" group="Manage application data" limit={4} />

[Browse all categories →](/)