Discord confirmed plans to rebuild its desktop application in Rust, ending its long-standing dependence on Electron. Co-founder and chief technology officer Stanislav Vishnevskiy said the company wants to move the entire client to the programming language. Discord’s desktop app relied on Electron for years, but the framework bundles Chromium, adding significant memory overhead. The shift to Rust and GPUI signals a broader engineering reset rather than a cosmetic update.
Vishnevskiy said the new desktop client will use GPUI, a Rust-based user-interface framework. Tauri is another lightweight alternative that many users had expected Discord to adopt.
The change removes the Chromium layer from the desktop experience. Discord expects this to reduce launch time, memory consumption, and the technical burden of maintaining a browser-based shell inside a chat application.
An early Windows 11 build, identified as ‘Discord Phoenix,’ appeared in a Task Manager screenshot shared by Vishnevskiy. The process showed memory usage of 290.2 MB while two accounts were running simultaneously.
The figure drew attention since current Electron-based versions can consume far more memory on Windows systems. However, Discord did not publish formal benchmarks, and independent testing will be needed to verify real-world gains.
The rebuild will not stop at Windows. Discord plans to drop React Native on mobile and retain native user interfaces, while sharing application logic with the desktop client through Rust.
For the web version, Discord is expected to use an HTML renderer with WebAssembly handling application logic. This approach would reduce the web client's reliance on JavaScript and bring its application logic closer to that of the native apps.
Vishnevskiy described moving the whole client to Rust as the company’s ‘holy grail.’ The company believes a single Rust codebase will make development more consistent across platforms and reduce duplicated engineering work.
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