TSLint is a deprecated static analysis tool that checked TypeScript code for readability, maintainability, and functionality errors. Prior to its deprecation, TSLint enforced coding style guidelines, helping maintain code quality across projects and teams. Rules were configurable, allowing customization to specific project needs. While TSLint is no longer actively maintained, many projects used it extensively and may still rely on it or be in the process of migrating to ESLint.
The npm package tslint had frequent releases between 2013 and 2020, with a peak in 2013. Releases became less frequent over time, with the last version published in July 2020. There have been no releases since then, indicating that the project is likely no longer actively maintained.
TSLint downloads saw fluctuating numbers from February 2024 to August 2025. Downloads surged in March-April 2024 and again in November 2024. 2025 saw consistently high numbers, peaking in June and July. August 2025 downloads are significantly lower, likely due to the month being incomplete.