If you are tired of installing and uninstalling antiviruses, downloading antivirus databases and activating keys, refer to online antiviruses. Scanning for viruses without installation is a worthy alternative. We have selected half a dozen reliable, free and effective virus scanners that work online, through a browser.

Which of the web services to choose for a one-time check? Is online antivirus suitable for Android? Read about all this in our review.

List of online antiviruses:

Powerful online scanner Doctor Web

This service is designed to check links for security. Paste a link to a suspicious site into a special text field, and Doctor Web scans the attached files on the html page, checking for malicious code. As a rule, a virus threat on online resources is hidden in javascript files. If the scripts are contained in the database of malicious sites or the site redirects to another resource, Doctor Web Online will notify you about it.

As you can see, the service is very minimalistic, there is only an antivirus web shell, which is not very convenient. It would be nice if the Doctor Web service got, say, an android application for online checking or, ideally, a browser add-on. At this point, we would not recommend an online version of the antivirus for use on a phone.

Tip of the day. By the way, if you need a good free antivirus, we recommend. It uses the actual bases of the desktop version of Doctor Web, while the functional part is reduced to a minimum.

ESET Online Scanner - online virus scan

The ESET online virus scan service is good because it is, in fact, a full-fledged antivirus. It works from a browser, respectively, without requiring installation on a computer.

Unlike the desktop version of ESET Nod, this web antivirus is free to use. Do not think that it makes no sense to require a full-fledged scanner from a web application. According to the creators, the online antivirus successfully copes with trojans, the latest viruses, worms, and phishing threats.

The user can select disks and computers to be scanned, specify memory areas, etc. Moreover, you do not need to have administrator rights to run an online check.

At the end of the scan, ESET Online Scanner offers to remove the viruses found or place them in quarantine.

In general, cleaning from viruses with the ESET Online Scanner web antivirus makes sense in many cases. In particular, if you want to scan someone else's computer, check the flash drive for viruses online, but you do not have the rights (or desire) to install applications.

VirusTotal - total online virus check

VirusTotal is another free service that will help you check for viruses online. It scans the content of files and the code of sites on the Internet. Any suspicious content VirusTotal scans for worms, malware, Trojans and other types of pests and virus threats.

The VirusTotal service also allows you to search for threats in the comments that users post on files and URLs, check passive DNS data, and extract threat information related to domains and IP addresses.

VirusTotal stores all analyzes in its database. This enables users to search reports with MD5, SHA1, SHA256 data. The search results return the last crawl performed on the resource you are interested in.

Kaspersky Online Scanner (VirusDesk)

Online service from the creators of . Checks files and links on the Internet. When a file is uploaded, Kaspersky scans it against its databases for existing threats and displays the result. This checks md5, SHA1 and SHA256 hashes. All databases are regularly updated, as evidenced by the corresponding inscription above the field for uploading files.

The scan result can also be negative, in which case VirusDesk displays the status "File is infected" or "File is suspicious".

Important! Unlike conventional antiviruses, you can only check the file for viruses, and you won't be able to quarantine or automatically delete it - you can only do it manually.

This is not to say that this online antivirus is convenient for checking your phone for viruses. You can only upload files up to 50 MB, and batch mode is not supported. The scanner does not remove viruses - the user must perform this action on his own. At the same time, for a one-time check, Kaspersky VirusDesk can become such a one-time antivirus, which is also not bad.

VirSCAN - online antivirus for Android

Using the VirSCAN.org service, it is possible to check Android for viruses online, as well as online check files for viruses.

For example, you can send apk-applications or other files for verification (the size should not exceed 20 MB). These can be zip and rar archives or files with password protection (you can only set the passwords "infected" and "virus").

The main and most significant feature of the VirSCAN online anti-virus is a huge database of regularly updated scanners, including kaspersky, avg, drweb, symantec and others. Among other things, VirSCAN checks MD5 and SHA1 hashes against its databases.

As the authors of this web antivirus warn, false alarms can sometimes be triggered, which is not surprising with such an impressive list of antivirus software. But, as they say, it's better to overdo it than not do it!

The downside of this online scan mechanism is the slow speed of operation, the absence of any settings (which would speed up the process) and the lack of scanning options: only single files can be uploaded for virus scanning.

AVC UnDroid - a service for checking apk files for viruses

The free online service AVC UnDroid is designed to check apk files for viruses. It uses engines such as Buster Sandbox Analyzer, ssdeep and APKTool when scanning.

In order to check the apk for viruses, just click the Select APK… button and download the installer file for checking. AVC UnDroid supports files up to 7 MB, which is enough for most tasks.

Downloaded files are analyzed inside AVC UnDroid, after which the user receives a detailed scan report - file hashes, security score and additional information.

Other data types are not supported, you can only upload one file at a time.

For convenience, you can register. This opens access to statistics and comments, increases the limit on uploaded files and increases the priority of verification.

As stated in the terms of use, this online virus scan service is experimental. Downloaded apk files, their contents can be used by the service, and there is nothing wrong with that.

Conclusion. This article lists a small part of online services for checking files over the Internet. If this is not enough, we advise you to study our guide,. Do you know other ways and services that will help you check your phone for viruses online? Share via the feedback form, we will be grateful!