ts-jest is a popular TypeScript preprocessor for Jest, enabling seamless testing of TypeScript code. It compiles TypeScript files on the fly, allowing Jest to understand and execute tests written in TypeScript. This eliminates the need for manual compilation before testing, streamlining the development workflow. ts-jest simplifies configuration, offers excellent performance through caching, and supports various TypeScript features. It's a must-have tool for any project using Jest with TypeScript, enhancing developer productivity and ensuring code quality.
Ts-jest releases were frequent in 2016-2018, peaking in 2017. The release frequency decreased significantly after 2018. There were periods with no releases. Releases occurred in the first half of 2025 (February, March, April, May and June). August 2025 has no releases until now.
Ts-jest npm package downloads surged from February 2024, peaking in June 2025 at over 94 million. Downloads consistently remained above 50 million after March 2024. August 2025 data is incomplete but shows over 57 million downloads, indicating continued strong usage.
