NSString *stringURL = @"http://www.powenko.com/test.png"; NSURL *url = [NSURL URLWithString:stringURL]; NSData *urlData = [NSData dataWithContentsOfURL:url]; if ( urlData ) { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *filePath = [NSString stringWithFormat:@"%@/%@", documentsDirectory,@"filename.png"]; [urlData writeToFile:filePath atomically:YES]; }