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How to use tsrs as the TypeScript language server in Zed

November 14, 2026 02:532 min read

In this guide, I'll explain how to configure Zed to use tsrs, a Rust port of the TypeScript compiler, as its TypeScript language server.

Table of Contents

What is tsrs?

tsrs is a Rust port of the TypeScript 7 compiler developed and released by VoidZero, the company behind Oxlint and Oxfmt, in collaboration with Cloudflare. According to the official blog post, tsrs runs up to 8 times faster than TypeScript 7.0 while using 70% less memory.

Introducing tsrs: a Port of TypeScript to Rust

Cloudflare is collaborating on tsrs, a Rust port of TypeScript that is up to 8x faster and uses 70% less memory.

blog.cloudflare.com

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The tsrs and TypeScript development teams are collaborating, and they are incorporating some of the optimizations from tsrs into the official Go implementation of TypeScript.

How to use tsrs as the TypeScript language server in Zed

To use tsrs as your TypeScript language server in Zed, install the TypeScript Language Server extension, which supports the Go implementation of TypeScript.

TypeScript Language Server Extension

A native Zed extension for TypeScript Language Server.

zed.dev

TypeScript Language Server — Zed Extension

After installing the extension, configure Zed to use it as the TypeScript language server.

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{
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    "languages": {
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        "TypeScript": {
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            "language_servers": ["!vtsls", "!typescript-language-server", "typescript-ls", "..."]
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        },
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        "TSX": {
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            "language_servers": ["!vtsls", "!typescript-language-server", "typescript-ls", "..."]
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        },
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        "JavaScript": {
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            "language_servers": ["!vtsls", "!typescript-language-server", "typescript-ls", "..."]
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        }
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    }
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}

Next, install tsrs globally on your system.

npm install -g tsrs

Then, configure Zed to use tsrs as the TypeScript Language Server executable.

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{
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    "lsp": {
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        "typescript-ls": {
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            "binary": {
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                "path": "path/to/tsrs",
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                "arguments": ["--lsp", "--stdio"]
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            }
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        }
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    },
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    "languages": {
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        "TypeScript": {
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            "language_servers": ["!vtsls", "!typescript-language-server", "typescript-ls", "..."]
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        },
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        "TSX": {
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            "language_servers": ["!vtsls", "!typescript-language-server", "typescript-ls", "..."]
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        },
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        "JavaScript": {
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            "language_servers": ["!vtsls", "!typescript-language-server", "typescript-ls", "..."]
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        }
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    }
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}

If you manage tsrs with mise, use the following configuration instead.

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{
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    "lsp": {
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        "typescript-ls": {
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            "binary": {
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                "path": "mise",
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                "arguments": ["exec", "--", "tsrs", "--lsp", "--stdio"]
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            }
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        }
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    },
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    "languages": {
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        "TypeScript": {
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            "language_servers": ["!vtsls", "!typescript-language-server", "typescript-ls", "..."]
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        },
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        "TSX": {
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            "language_servers": ["!vtsls", "!typescript-language-server", "typescript-ls", "..."]
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        },
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        "JavaScript": {
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            "language_servers": ["!vtsls", "!typescript-language-server", "typescript-ls", "..."]
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        }
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    }
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}

You can now use tsrs as the TypeScript language server in Zed.

Verification details and sources

Verification environment

OS: Windows 11
Zed: Version 1.28.1
tsrs: Version 0.23.0-ts7.1.0-beta

Verification details

WindowsとWSL環境でZedのTypeScript言語サーバーとして、miseで管理しているtsrsを指定して日常的にコーディングし、動作を確認しました。

Last verification date

November 14, 2026 at 02:50 AM (JST)

Changelog

I used tsrs, managed through mise, as Zed's TypeScript language server for daily coding on both Windows and WSL and confirmed that it worked.

Reference links

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I've been using JavaScript more than my native language since birth. I am nowhere and everywhere on the internet.

I build web apps and browser extensions in TypeScript as a web frontend programmer. I released Shadowban Scanner, a tool that detects shadowbans on X, and Restore Link Card, a tool that brings back link cards. Media outlets in Japan and abroad covered both tools. For iGEM 2023, I built the Wiki for Team Japan-United and helped the team win the Grand Prize. On my blog, I cover news about X and social media, test and troubleshoot bugs, and share frontend development insights.