Asset Resizer

Asset Resizer quickly scales your Android app artwork to the targeted resolution sizes (ldpi, tvdpi, mdpi, hdpi, xhdpi, xxhdpi, xxxhpi).

To use the tool, you simply drop in an image asset that is the correct size for (or larger than) your largest desired export size and then hit export. The image will be resized to all chosen resolutions and saved in folders with the names of the corresponding resolution scales (mdpi, hdpi, etc).