To overcome the 2 MB main‑package limit of WeChat mini‑programs, this guide details a step‑by‑step solution that uses @galacean/effects for stunning homepage animations, applies page and module splitting, Babel and webpack plugins, and Taro configuration to move large code into asynchronous sub‑packages.
The guide explains how to build WeChat Mini Programs using a hybrid WebView‑JavaScript sandbox architecture, stay within 20 MB (2 MB per package) limits, organize code with main and sub‑packages, choose uni‑app or Taro, optimize assets, configure app.json, employ dev tools, automate builds and uploads with miniprogram‑ci, and monitor performance via WeAnalysis.
The article explains how Baidu App reduces its iOS package size by analyzing Link Map files and applying six code‑optimization techniques—unused class and module slimming, unused method pruning with LLVM, duplicate‑code detection, utility‑method consolidation, and A/B‑test hardening—yielding up to 8 MB of savings.
This article explains how Baidu's iOS app analyzes Mach‑O binaries and applies systematic resource‑optimization techniques—including big‑resource detection, unused config removal, and duplicate asset elimination—to shrink package size by over a dozen megabytes.
This article reviews Youku's five‑year journey of Android APK size reduction, detailing the shift from special‑project squeezes to sustainable normal governance, the technical measures and analysis tools like Franky, and practical slimming techniques that can help any mobile team manage package size efficiently.
This article details Ctrip's comprehensive mini‑program size governance framework, covering size allocation, detection, application approval, reminders, statistics, and main‑package file management to ensure packages stay within WeChat's limits and improve launch performance.
After moving its WeChat/Alipay entry to a Didi Ride‑Hailing mini‑program, the team kept the main bundle under the 2 MB limit by applying MPX‑based webpack tree‑shaking, minification, CDN‑compressed assets, aggressive sub‑package splitting and a lightweight cover page, reducing the core to about 1.1 MB while shifting most business logic into 800 KB–1.2 MB sub‑packages.
WeCOS is a command‑line tool that uploads a Mini Program’s local image assets to Tencent Cloud Object Storage, replaces the code’s image paths with COS URLs, removes the original files, and thus shrinks the package below the 1 MB upload limit, simplifying the otherwise manual process.
