# zipalign > Zip archive alignment tool. > Part of the Android SDK build tools. > More information: . - Align the data of a ZIP file on 4-byte boundaries: `zipalign {{4}} {{path/to/input.zip}} {{path/to/output.zip}}` - Check that a ZIP file is correctly aligned on 4-byte boundaries and display the results in a verbose manner: `zipalign -v -c {{4}} {{path/to/input.zip}}`