# TypeScript compiler (tsc)

5 Hacker News commenters recommended TypeScript compiler (tsc) and 3 criticized it, November 2025 to November 2026. It was recommended in 5 of 13 months.

**Verdict:** Recommended as the reliable way to type-check TypeScript, including code generated by LLMs and JSDoc-typed JavaScript. Critics note it is slow and misses some bugs.

## Why people recommend it

- Reliable type checking, the go-to option (2 comments): "the only tool that can do that reliably is `tsc`" ([source](https://news.ycombinator.com/item?id=49575535)) "If you want type checking, there's tsc." ([source](https://news.ycombinator.com/item?id=48006303))

## Alternatives hackers recommend

- [tsgo](https://hackerapproved.com/p/tsgo.md): 16 recommend
- [Scriptc by Vercel](https://hackerapproved.com/p/scriptc.md): 12 recommend
- [Perry TypeScript compiler](https://hackerapproved.com/p/perry.md): 11 recommend
- [tsz](https://hackerapproved.com/p/tsz.md): 6 recommend
- [tsc-ts](https://hackerapproved.com/p/tsc-ts.md): 6 recommend

## Cite as

Hacker Approved, "TypeScript compiler (tsc)", https://hackerapproved.com/p/tsc/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).