# tsz

6 Hacker News commenters recommended tsz and 3 criticized it, November 2025 to November 2026. It was recommended in 2 of 13 months.

**Verdict:** Fast TypeScript checker and compiler written in Rust, reported faster than tsgo, though critics say passing tests missed bugs.

## Why people recommend it

- Faster than tsgo in benchmarks (3 comments): "With a different design I managed to make it faster than tsgo port." ([source](https://news.ycombinator.com/item?id=48019926)) "It's already showing results that is nearly 3x faster than tsgo." ([source](https://news.ycombinator.com/item?id=48334110)) "Single file benchmarks are 3–5x faster than tsgo." ([source](https://news.ycombinator.com/item?id=48087749))
- Praised as impressive, needed for TypeScript (2 comments): "This is awesome. Typescript really needs more of this." ([source](https://news.ycombinator.com/item?id=48156712)) "tsz looks impressive. Congrats!" ([source](https://news.ycombinator.com/item?id=48158325))

## 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
- [tsc-ts](https://hackerapproved.com/p/tsc-ts.md): 6 recommend
- [TypeScript compiler (tsc)](https://hackerapproved.com/p/tsc.md): 5 recommend

## Cite as

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