Crop Sheet is described as 'Instead of deleting extra rows and columns yourself, simply crop the sheet to just the area you want to keep. Supports cropping to the data on the sheet, or cropping to the cells you have selected'. There are three alternatives to Crop Sheet for Google Drive - Sheets and Online / Web-based. The best alternative is ChangeCase, which is free. Other great apps like Crop Sheet are Remove Blank Rows (Free) and Power Tools for google sheets (Free).
Do you have Sheets that contain nagging blank rows or columns and it takes a lot of time to delete or hide them and not to mention the risk of accidentally deleting the wrong rows or columns? If you do, get this add-on to quickly get rid of them.