Jotti's malware scan does one thing and one thing only: it scans files for viruses and then tells you what it finds. The process is fast and easy. Simply upload any file using the site's Submit Files option. From there, Jotti will scan the file with over 20 different online scanners, including such popular services as Avast! and ESET. About a minute later it will return your results in an easy-to-read format. The service is free. Up to five files can be scanned simultaneously, with a 50MB limit. For readers who need to know about the safety of individual files, Jotti is one of the best services around.