Most of us are using anti virus these days, but some time your antivirus is not helpful with some Virus and Malware. In such situation, the best you can do is use something that’s free and fast. So am here posting 10 best Online Scanners which are free and easy to use.
1. BitDefender – An online version of the BitDefender software. Will scan your drives, files, and boot sector. Works only with Internet Explorer.

2. Computer Associates Malware Scanner – Browse your drives for a file you suspect of being malware and upload it for their scanner to check it for you.

3. ESET – Online malware scanner. With just an acceptance of ESET’s TOS, you can scan your PC for known malware including viruses, worms, Trojans, phishing, and spyware.

4. NanoScan - NanoScan is an new and fast online virus scanner developed by Panda Software. It takes only 1-2 minutes to scan your whole PC. NanoScan is a free online solution that detects different kind of malware that could be running on the computer.

5. McAfee FreeScan - McAfee FreeScan is a great virus scanner using the award-winning McAfee Scan Engine. Uses ActiveX component

6. Avast - Online version of popular antivirus software Avast will scan individual files of up to 512kb in size.
7. TrendMicro - Scans for Viruses and Malware. It also scans for vulnerabilities and and fixes them to prevent re-infestation.
8. Jotti- Uses several scanners at once to scan files that you upload to detect malware that may be hidden.
9. Panda Security - Searches your system for worms, viruses, trojans and more after a small Active X download.
10. F-Secure - Simple virus scan from web. Uses ActiveX components

We recommend! 



It’s a shame that Bit Defender is so unuseable. I have Internet Explorer 7, and the scanner refuses to load. They have a page that tells you how to reset your security settings, but apparently they haven’t updated it in years because it’s useless. They tell you to set your security settings to medium/high, this is no good. They tell you to add their site to Trusted Sites but this is quite impossible as IE7 now only accepts sites with the “https” prefix in that zone. I actually don’t know of many sites that even use this prefix. Thank God for Firefox. What’s more, even to send them feedback one must fill out a CAPTCHA which leaves out blind users like myself entirely. You can’t even fill out their little survey to rate their info page. They don’t seem to have sense enough to implement an audio CAPTCHA like Google and many other sites are using now. If I remember correctly this is the same manual scanner I tried to use last year with IE6 which refused to remove anything. I’m quite surprised it’s number one on your list. Ordinary computer users and especially blind ones should not waste time with this one.
I highly reccommend Avast AV it’s the best I’ve tried, and wins surveys on % of trojans, rootkits etc. detected
Why was the Kaesersky scanner not on the list?