Before we dive into the download process, a word of caution. Googling "zipalign download windows" brings up dozens of dubious websites offering a standalone zipalign.exe file. Do not download these.
Here is why:
The Golden Rule: Always download Zipalign as part of the official Android Command Line Tools or Android Studio. zipalign download windows
Assume you have a file called buggy_app.apk on your Desktop.
Open Command Prompt and run the SDK manager (adjust path to where you extracted tools): Before we dive into the download process, a word of caution
cd C:\android-sdk\cmdline-tools\bin
sdkmanager.bat "platform-tools" "platforms;android-33" "build-tools;33.0.2"
(Use a build-tools version that matches your target; newer versions include zipalign.)
Once you have zipalign.exe, open Command Prompt and navigate to the folder containing the tool. Basic usage: The Golden Rule: Always download Zipalign as part
zipalign -p -f -v 4 input.apk output.apk
Since Zipalign is part of the Android SDK Build Tools, follow these steps to obtain it:
Basic usage to align an APK:
zipalign -v -p 4 input.apk output-aligned.apk
To verify alignment:
zipalign -c -v 4 output-aligned.apk