LeanFPS
Open-source Windows game optimizer with ETW FPS measurements and individually reversible system tweaks.
About LeanFPS
LeanFPS supports Windows 10/11 x64 and is built with Rust and egui. It detects supported games, applies genre profiles, and records average FPS and 1% lows through ETW. Changes are tracked locally with individual Undo controls; temporary session changes restore on exit, while persistent settings remain until undone. Core features are free; optional Pro is $19 once. The complete source is MIT-licensed: https://github.com/Jamailar/leanfps. The uploaded public UI preview contains sample data, not measured benchmark results. Submitted on behalf of the project owner.
Listing details
Games: Counter-Strike 2, Valorant, Fortnite, Apex Legends and other supported Windows games
Topics: Windows, FPS, game optimizer, Rust, open source
Visit the official LeanFPS website
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