APK Asset Compressor

An APK (Android Package) is a ZIP archive containing compiled code, resources, and assets. The largest contributors to APK size are typically image assets (PNG icons, JPEG backgrounds, WebP illustrations) and XML resource files (layouts, strings, drawables). APK asset compression reduces the size of these individual files before they are repackaged into the APK. Our apk asset compressorre-encodes image files using the browser's Canvas API (removing metadata and applying JPEG quality reduction) and minifies XML files by stripping whitespace and comments — producing drop-in replacement files that are smaller but functionally identical.

1. 1Upload your APK assets: Drag and drop PNG, JPEG, WebP, GIF, BMP, or XML files extracted from your APK. Use apktool to extract assets:apktool d app.apk. The files are loaded into your browser — no data is sent to any server.
2. 2Choose JPEG quality and click "Compress Assets": PNG files are losslessly re-encoded (metadata stripped). JPEG files are re-encoded at the selected quality. XML files are minified by removing whitespace and comments. Processing runs entirely in your browser.
3. 3Download and replace in your APK: Single files download directly. Multiple files are packaged as a ZIP. Replace the original files in your extracted APK directory and repackage with apktool:apktool b app -o app-compressed.apk.

• PNG Images: Re-encoded using the Canvas API — removes EXIF metadata, ICC color profiles, and embedded thumbnails. Transparency is fully preserved. Typical savings: 5–20% on PNG icons and drawables.
• JPEG Images: Re-encoded at the selected quality level (60–90%). At 80% quality, JPEG images typically achieve 30–50% size reduction with minimal visible quality loss — ideal for background images and splash screens.
• XML Layout Files: Whitespace between tags is removed, comments are stripped, and multiple spaces are collapsed. Typical savings: 20–40% on Android layout XML files with proper indentation.
• Other Formats: WebP, GIF, and BMP images are re-encoded through Canvas. Files that cannot be processed (binary assets, fonts) are skipped and flagged in the results panel.

The apk asset compressor processes individual asset files — it does not extract or repackage APK archives. Use apktoolto extract your APK, compress the assets with this tool, then repackage with apktool. Note that Android's build system (Gradle/AAPT2) already applies some image compression during the build process — assets in a release APK may already be partially optimized. For maximum APK size reduction, also consider using WebP format for all images (typically 25–35% smaller than PNG) and enabling R8/ProGuard code shrinking.