kulshekhar/ts-jest
A Jest transformer with source map support that lets you use Jest to test projects written in TypeScript. observed · 2026-08-28
Health v2 · maintenance only
97/100
- Activity 99
- Release rhythm 94
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 23.0
- age_days: 3655
- days_rel: 42
- days_push: 7
- n_releases_24m: 19
Adoption not part of the score
7075 stars · 476 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
ts-jest is a Jest transformer that enables testing TypeScript projects with Jest, providing source map support and full TypeScript feature support including type-checking. It offers several Jest presets for quick setup and can work in combination with Babel.
Use cases
- run jest tests on a typescript project
- test typescript code with type checking
- set up jest for typescript with presets
- get source maps in jest test errors for typescript
- use babel alongside typescript in jest
- migrate a javascript jest setup to typescript
When to choose
- you use Jest and want first-class TypeScript support with type-checking during tests
- you need accurate stack traces via source maps in TypeScript tests
- you want ready-made Jest presets to get started quickly
When to avoid
- you use a test runner other than Jest, such as Vitest
- you prefer transpile-only speed via Babel's preset-typescript without type-checking
- your project does not use TypeScript
Facets
library · maturity stable
testing e2e-testing compiler testing developer-tools web-development cli cross-platform jest typescript test-transformer source-maps unit-testing nodejs
2 sources
- readme: https://github.com/kulshekhar/ts-jest · fetched 2026-08-28 · c081c44d56d9
- homepage: https://kulshekhar.github.io/ts-jest · fetched 2026-08-29 · 06205494d254
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| kulshekhar/ts-jest | main | 97 |
For agents
markdown · JSON · MCP: product_card(name="kulshekhar/ts-jest")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem