Writing code is easier than ever. We want to make deleting code just as easy – introducing Reaper for iOS and Android. Reaper was an Emerge Tools product that h...

Emerge Tools

Sentry open-sourced Reaper, an SDK for detecting dead code in iOS and Android apps through runtime analysis. Unlike static analysis tools, Reaper monitors actual user sessions to identify code that's never executed in production. The iOS version leverages Objective-C and Swift runtime metadata to track type initialization with zero runtime overhead. The Android version instruments bytecode at build time, injecting tracking calls into class initializers. Both implementations allow teams to aggregate usage data across app versions and safely identify unused code for deletion, helping manage codebase complexity and technical debt.

Reaper - An open-source SDK for finding dead code

How Reaper works: Runtime Analysis How Reaper works: Runtime Analysis

Why deleting code is important Why deleting code is important

<p>A similar tool for javascript/typescript that is based on static analysis is “Knip”. I am actively using it and its pretty useful.</p>


<p>Is there a similar one for python?</p>
