Discord is killing its Electron app that can eat 4GB of RAM on Windows 11, and the Rust rebuild uses just 290MB

Discord has announced a fundamental shift in its software architecture, moving away from the Electron framework to a complete rebuild using the Rust programming language. According to coverage from Tbreak UAE and The Verge, the company is ditching its current Electron desktop application in favor of this new build. The transition is not limited to computers; Inven Global reports that the Discord CTO confirmed both the desktop and mobile applications are being rebuilt in Rust. This architectural change is designed to address significant performance issues associated with the previous framework's resource consumption. Reporting from Windows Latest and Shane the Gamer emphasizes the stark difference in memory utilization between the two versions.

Specifically, coverage notes that the Electron app on Windows 11 could consume as much as 4GB of RAM. In contrast, an early build of the Rust-based application reportedly uses only 290MB of RAM. The Verge and other outlets highlight that this move is a direct effort to ensure the app uses less memory, providing a more lightweight experience for users who previously struggled with high system resource demands. To understand why this transition is occurring, it is necessary to look at the known limitations of Electron, which the coverage suggests led to the excessive 4GB RAM usage on Windows 11 systems. By moving to Rust, Discord is attempting to solve the inefficiency of its previous desktop client.

The involvement of the Discord CTO in confirming these changes indicates that the shift to Rust is a high-level strategic priority for the company's development roadmap across its entire ecosystem, including the mobile experience. Future developments to monitor include the rollout of the Rust rebuild to the wider user base. While Shane the Gamer mentions an early build that achieves the 290MB RAM footprint, the coverage does not yet specify a final release date for all users. Observers will be looking for confirmation on when the Electron app will be fully killed off and replaced. Additionally, further details are expected regarding how the Rust transition will specifically improve the performance of the mobile apps as mentioned by the company's CTO.