# TSTyche

Type testing for TypeScript.

Source: [Console review](<https://console.dev/tools/tstyche>)

Website: [https://tstyche.org/](<https://tstyche.org/>)

Profile updated: 2026-10-16

Category: [Testing frameworks](<https://console.dev/tools/categories/developer-tools-testing-frameworks>)

## Supported tech stack

Research checked: 2026-10-11

### Integrates with

- TypeScript (Language)

Source: [Research source](<https://tstyche.org/>)

Documented compatibility; coverage may be incomplete. Written in describes implementation, not user-project language support.

Type testing tool targets TypeScript.

## Console’s review — 2025-07-10

Reviewed: 2025-07-10

Author: [David Mytton](<https://console.dev/about#david-mytton>)

Citation: [This review](<https://console.dev/tools/tstyche#review_56e679c8cab3b788ece27e42f8557aaa7fdddd5a5dea6797c937155c4190a9ca>)

### What we like

Makes testing types easier. Includes expect style assertions e.g. toBe(), toBeCallableWith(). Intuitive helpers for test(), it(), describe(). Test runner can specify filters, paths, and target specific TypeScript versions.

### Tradeoffs

Testing many versions of TypeScript can be slow.

This review reflects Console’s assessment at publication on 2025-07-10. Features and limitations may have changed since the review date.

## Is TSTyche a fit?

Based on [Console’s review published on 2025-07-10](<https://console.dev/tools/tstyche#review_56e679c8cab3b788ece27e42f8557aaa7fdddd5a5dea6797c937155c4190a9ca>).

Summary updated: 2026-10-16

### Who it’s for

Developers working with TypeScript should consider TSTyche for type testing tasks

### Why consider it

TSTyche makes testing types easier

### Keep in mind

Its main limitation is that testing many versions of TypeScript can be slow

[Selection criteria](<https://console.dev/selection-criteria>) · [About Console](<https://console.dev/about>) · [Browse tools](<https://console.dev/tools>)