# oxc-project/tsrs

> A Rust port of the TypeScript 7 compiler and language server, built as a drop-in replacement with lower memory use and faster type checking. The goal is 100% conformance with TypeScript.

- Magnitude: 6.7 out of 10 — Breakout
- Stars: 1,800 total · +58 stars measured 2026-10-22, 00:37–04:07 UTC, ≈ 411 by evening
- Star trust: star growth looks organic
- Category: Developer tools · Language: Rust · License: Apache-2.0 · Created: 2026-10-01 · Last push: 2026-10-22
- GitHub: https://github.com/oxc-project/tsrs · Homepage: https://www.npmjs.com/package/tsrs · Page: https://gitnova.dev/en/r/oxc-project/tsrs

## Useful for

- Swap tsc for tsrs in CI to speed up type checking and cut memory use
- Run tsrs --noEmit on an existing project and compare diagnostics with tsc
- Use tsrs as the language server in an editor for faster type checking

## Why it’s here

- Star-counter measurements on 2026-10-22 (UTC), 00:37–04:07: 1742 → 1800 stars (+58). This is the change over that interval.
- Estimated end-of-day forecast: about +411 stars, using observed gains and the previous day.
- Over the last two days the pace is 15× that of the previous week and a half.
- Elevated gains were measured on the last 2 completed UTC days in a row. Continued growth is not guaranteed.
- The repository is 21 days old and already has 1,800 stars.
- Top new repositories this month: #87.
- Hacker News: “Oxc tsrs: TypeScript 7 ported to Rust” — 5 points, 1 day ago.
- About 11 forks a day — people are taking the code.
- Recent forks include notable developers: @mbrukman (400 followers), @millette (311 followers).

## Star trust

Star growth looks organic.
- Fewer forks than usual: 30 for 1,800 stars.

Star-trust labels are heuristics based on the repository’s behavior, not a check of every stargazer.

## Numbers

- Forks: 30
- Issues and pull requests: 669
- Watchers: 3
- Average over the last week: 296 per day
- Usual pace: 8 per day
- Stars in the last hour (measured): 14
- Latest release: v0.18.0 (2026-10-19)

## Stars per day, last 22 days (oldest → newest, today is partial)

2026-10-01 … 2026-10-22: 4, 2, 5, 1, 2, 7, 47, 11, 10, 5, 7, 8, 6, 17, 11, 15, 124, 70, 40, 956, 454, 58

## Magnitude by day, last 2 days

10-21 6.9, 10-22 6.7

## Hacker News

- Oxc tsrs: TypeScript 7 ported to Rust — 5 points, 0 comments: https://news.ycombinator.com/item?id=50166120

## Spotted in now

- Top new repositories this month: #87

## Similar by description

1. **pingdotgg/ts-rust** — 2.5 · Steady · Developer tools · Rust · +5 stars measured 2026-10-22, 00:41–04:11 UTC, ≈ 30 by evening
   An experimental Rust port of the TypeScript 7 compiler (tsc), including the type checker, language server and API. Positioned as a faster alternative to tsc, including for WASM use.
   Full card: https://gitnova.dev/en/r/pingdotgg/ts-rust.md
2. **vercel-labs/tsc-ts** — 1.9 · Cooling · Developer tools · TypeScript · +1 star measured 2026-10-22, 00:05–04:12 UTC, ≈ 9 by evening
   An experimental TypeScript port of the TypeScript 7.0.2 compiler (tsgo), compiled to native code with scriptc. Provides the tsc-ts CLI and an API server compatible with tsc --api.
   Full card: https://gitnova.dev/en/r/vercel-labs/tsc-ts.md
3. **rui314/mold** — 0.8 · Steady · Developer tools · Rust · +0 stars measured 2026-10-22, 00:04–04:16 UTC, ≈ 2 by evening
   A high-performance drop-in replacement for Unix linkers that speeds up C/C++/Rust builds by linking object files faster.
   Full card: https://gitnova.dev/en/r/rui314/mold.md
4. **Automattic/harper** — 2.5 · Steady · Developer tools · Rust · +4 stars measured 2026-10-22, 00:41–04:10 UTC, ≈ 38 by evening
   Offline English grammar checker written in Rust: runs locally without sending text to servers, fast and memory-efficient. Available as WebAssembly, a Chrome extension, an LSP server, and a Node.js library.
   Full card: https://gitnova.dev/en/r/Automattic/harper.md

---

Magnitude (0–10) measures how fast and how unusually interest in a repository is growing right now. It is not a quality score.
Days are UTC. “So far today” is a fact; “expected by the end of the day” is a forecast.
Summaries and use cases are written by an LLM (DeepSeek V4.1 Flash) from the README and may be inaccurate: verify specific claims (benchmarks, speed, hardware) in the repository itself.
Data as of 2026-10-22 04:18 UTC, updated every 30 minutes.