OPSWAT File Security for Browser

How to install an extension Open in Chrome Web Store

CRX ID

fjampemfhdfmangifafmianhokmpjbcj

Status

Extension status: Featured

Description from extension meta

Scan files and downloads with OPSWAT File Security for Browser

Image from store

Description from store

Scan every download from your Chrome browser with over 30 anti-malware engines and industry-leading vulnerability scanning technology. OPSWAT File Security for Chrome is an easy-to-use tool that examines every download via MetaDefender Cloud. Leverage the file hash database, fast multi-scanning, patented vulnerability scanning and effective data sanitization (CDR) to detect and block threats in files and applications before you download them.

You can also try out MetaDefender Cloud by visiting https://metadefender.opswat.com

Latest reviews

liad stein 2025-07-23: I downloaded a file from a fake site that looked almost identical, but it turned out to have a virus. OPSWAT marked it as safe with a "V." After opening the file, my Windows Defender went crazy, detecting 700 viruses in one file! They had already started affecting my files and registry, and it took a long time to clean up. This was no ordinary virus, and if this virus wasn't recognized by this extension, I definitely can't recommend it. even eicar. malware-testfile failed in most file forms!
Дмитрий 2023-03-28: Не понятно что программа делает, по ходу качает проверяемый файл, который ты пробуешь проверить по ссылке, но с расширением txt.
Christoph Brecht 2022-09-02: The bad reviews are coming from people who do not really understand what this extension does. 1. OPSWAT is a vendor for critical infrastructure protection 2. This free extension allows to scan files with the OPSWAT Cloud, currently 24 Malware engines (check metadefender.opswat.com for more info). 3. It can also check the URL reputation using the OPSWAT Threat intelligence 4. The API key you can enter is only needed for corp customers who want to use their own OPSWAT Metadefender instance. 5. And of course for the above you need to give permission for certain thinks to work I thinks this extension gives you the best level of security when it comes to downloads on the market, and that for free!
Christoph Brecht 2022-09-02: The bad reviews are coming from people who do not really understand what this extension does. 1. OPSWAT is a vendor for critical infrastructure protection 2. This free extension allows to scan files with the OPSWAT Cloud, currently 24 Malware engines (check metadefender.opswat.com for more info). 3. It can also check the URL reputation using the OPSWAT Threat intelligence 4. The API key you can enter is only needed for corp customers who want to use their own OPSWAT Metadefender instance. 5. And of course for the above you need to give permission for certain thinks to work I thinks this extension gives you the best level of security when it comes to downloads on the market, and that for free!
A 2022-08-11: 100% malware. Performs malicious activity in the background and requires unnecessary amount of privileges. STAY AWAY!!!!!!!!!!!!!!!!!!!!!!!!!!!
matteo yap 2021-09-24: saw high ratings and lotsa downloads for tis virus scanner extension install on brave browser [chromium based] and firefox [mozilla based] unable to scan as the scan process require API key. but on the extension settings Your MetaDefender API KEY info was blank. Thought it was browser problem. disable all the other extension but the api key just doesnt load. Disappointed with the extension. using the website is much slower
matteo yap 2021-09-24: saw high ratings and lotsa downloads for tis virus scanner extension install on brave browser [chromium based] and firefox [mozilla based] unable to scan as the scan process require API key. but on the extension settings Your MetaDefender API KEY info was blank. Thought it was browser problem. disable all the other extension but the api key just doesnt load. Disappointed with the extension. using the website is much slower
Arkangel Michael 2019-12-27: Awesome plugin. Basically VirusTotal in your browser.
Arkangel Michael 2019-12-27: Awesome plugin. Basically VirusTotal in your browser.
Doc Flay 2019-08-23: I swapped from using a VT extension a while ago and have been very impressed with this. Nobody needs all the pointless AV engines, and OPSWAT uses the ones I trust Now it has domain-checking of any sites you visit, and I was surprised and very pleased to see a warning for a spam domain which my other block-lists missed. The use of StopForumSpam is a great idea as it includes useful evidence for many IPs and addresses.
Doc Flay 2019-08-23: I swapped from using a VT extension a while ago and have been very impressed with this. Nobody needs all the pointless AV engines, and OPSWAT uses the ones I trust Now it has domain-checking of any sites you visit, and I was surprised and very pleased to see a warning for a spam domain which my other block-lists missed. The use of StopForumSpam is a great idea as it includes useful evidence for many IPs and addresses.
Sindile Wren 2018-06-28: used to have 4 stars... now it has broken my chrome...have had both OPSWAT METADEFENDER ext & EZ-LINK ext on chrome for years... no conflict till now... It nw is incompatable with EZ=link and i need my EZ-link way more so i have to remove OPSWAT.,. thaNKS. ~~~~~~ ERROR BELOW IS THIS: First none of my google searches will load and i get this 400 error: "400. That’s an error. Your client has issued a malformed or illegal request. That’s all we know." ~~~~~~ it says its extension fjampemfhdfmangifafmianhokmpjbcj which is yours ~ This extension failed to modify the response header "x-frame-options" of a network request because the modification conflicted with another extension (OPSWAT File Security for Chrome).
Sindile Wren 2018-06-28: used to have 4 stars... now it has broken my chrome...have had both OPSWAT METADEFENDER ext & EZ-LINK ext on chrome for years... no conflict till now... It nw is incompatable with EZ=link and i need my EZ-link way more so i have to remove OPSWAT.,. thaNKS. ~~~~~~ ERROR BELOW IS THIS: First none of my google searches will load and i get this 400 error: "400. That’s an error. Your client has issued a malformed or illegal request. That’s all we know." ~~~~~~ it says its extension fjampemfhdfmangifafmianhokmpjbcj which is yours ~ This extension failed to modify the response header "x-frame-options" of a network request because the modification conflicted with another extension (OPSWAT File Security for Chrome).
Riccardo Troè 2018-06-12: Molto comodo analizzare ogni download. Ottima.
Daniel Menjívar 2018-05-31: Excepcional
Nagarjuna Panidapu 2018-04-25: API key not found error after installing. but restarting browser fixed it.
Nagarjuna Panidapu 2018-04-25: API key not found error after installing. but restarting browser fixed it.
Razvan Robert 2017-12-18: This is awesome! Perfect tool to keep you safe!!
Razvan Robert 2017-12-18: This is awesome! Perfect tool to keep you safe!!
TerrySGC 2017-12-12: After adding this to Chrome then adding the given API key, nothing happens, doesn't work ???
TerrySGC 2017-12-12: After adding this to Chrome then adding the given API key, nothing happens, doesn't work ???
Роман Прайм 2017-06-26: Пока все отлично. Проверил на uTorrent показало как есть 2 угрозы так оно и есть. Если будут проблемы то я об этом напишу но на данный момент я доволен!
László Oláh 2017-06-08: I like it :)
László Oláh 2017-06-08: I like it :)
Thomas Cassen 2017-05-25: too many browser tabs opened while download and after scan (if u close prévious). better replacing by notifications whith a link to details (and this link open a tab) in chrome or in desktop (if u activate the mode)
Thomas Cassen 2017-05-25: too many browser tabs opened while download and after scan (if u close prévious). better replacing by notifications whith a link to details (and this link open a tab) in chrome or in desktop (if u activate the mode)
MIZANTROP ili 2017-04-25: Почему пропадает из контекстного меню браузера? При установлении расширения присутствует, некоторое время, а далее исчезает!!!???
Christophe Wildfire 2017-03-24: It works really well.
Christophe Wildfire 2017-03-24: It works really well.
Allen Flores 2017-03-07: no funciona como dice
Anonymous 2017-02-14: This Pretty Good ! i love it !
Anonymous 2017-02-14: This Pretty Good ! i love it !
Toro Castano 2016-09-24: API key is redacted so no way to save it. I get error messages asking for the key when it seems to disappear. Don' t know if this is Chrome which periodically logs me out or the extension. Couldn't find a support page that addresses this.
Toro Castano 2016-09-24: API key is redacted so no way to save it. I get error messages asking for the key when it seems to disappear. Don' t know if this is Chrome which periodically logs me out or the extension. Couldn't find a support page that addresses this.
Владимир Иванов 2016-08-23: Отлично! Наконец-то нашел проверялку для скачиваемых файлов!
Sébastien Lauzon 2016-03-30: Pretty solid for a MultiScanner. My suggestion, add a disable and enable button, because sometimes it's just pointless to scan a file, that you know is inoffensive, and sometimes you're just too lazy to wait for it to scan after the download. Just me?
Sébastien Lauzon 2016-03-30: Pretty solid for a MultiScanner. My suggestion, add a disable and enable button, because sometimes it's just pointless to scan a file, that you know is inoffensive, and sometimes you're just too lazy to wait for it to scan after the download. Just me?
Petru Isfan 2016-03-24: Now with the new version of metadefender.com, you don't need an apikey from portal anymore! It is generated automatically when you first enter :)
Petru Isfan 2016-03-24: Now with the new version of metadefender.com, you don't need an apikey from portal anymore! It is generated automatically when you first enter :)
Sean Riddolls 2016-02-28: Really impressed with this malware scanner service! I had been using their scanning service at www.metadefender.com, where you just drag and drop a suspicious file onto their upload page, where it's scanned by some 43 different antivirus engines. Among its roster are most of the heavy hitters in the Anti-Virus industry: Bit Defender, Kaspersky, McAfee, Microsoft, Symantec, Sophos, TrendMicro. Since AV engines all have different definition sets, one engine may not catch a virus, while another one will. When a file is cleared by all 43 virus scans, you know it's secure. This plugin effectively does what their webpage does, but removes extra steps by automatically uploading a copy of your suspicious file to their server. I'm even more impressed when it does catch a virus, because you get 43 'second' opinions on what kind of virus it is, with the result listed by each company It's a phenomenally powerful service. I would have given it 5 stars, except that sometimes the scan results page hangs - however it's easily fixed by refreshing the page.
Sean Riddolls 2016-02-28: Really impressed with this malware scanner service! I had been using their scanning service at www.metadefender.com, where you just drag and drop a suspicious file onto their upload page, where it's scanned by some 43 different antivirus engines. Among its roster are most of the heavy hitters in the Anti-Virus industry: Bit Defender, Kaspersky, McAfee, Microsoft, Symantec, Sophos, TrendMicro. Since AV engines all have different definition sets, one engine may not catch a virus, while another one will. When a file is cleared by all 43 virus scans, you know it's secure. This plugin effectively does what their webpage does, but removes extra steps by automatically uploading a copy of your suspicious file to their server. I'm even more impressed when it does catch a virus, because you get 43 'second' opinions on what kind of virus it is, with the result listed by each company It's a phenomenally powerful service. I would have given it 5 stars, except that sometimes the scan results page hangs - however it's easily fixed by refreshing the page.
J.C.M. Kosten 2016-02-18: Het geeft wat meer vertrouwen als je wat download
Gábor Gábor 2015-12-05: Jo cucc. De ha ugy mukodik, ahogy lattam, akkor zabalja a netet + nem eleg biztonsagos, mert: letolti a fajlt, amit akarok. Kozben mar vizsgalodik, de ugy, hogy visszatolti a fajl masolatat a netre. Es kiirja az eredmenyt. (En igy lattam.) Igy lenne jo: Eloszor vizsgalna es utana eredmeny; es megkerdezne, hogy letoltom e.
user name 2015-09-10: this is a great virus scanner, it scans with 42 anti virus applications, and then show you the results, it is a great applications if you want to be protected.
user name 2015-09-10: this is a great virus scanner, it scans with 42 anti virus applications, and then show you the results, it is a great applications if you want to be protected.
chad tunis 2015-06-12: Took a few hours to get my free OPSWAT API key, but once I got it, and applied the key per the instructions, the metascan extension worked as advertised. It provides another means of protecting computers from the nasties lurking out there! Very nice extension!!!
chad tunis 2015-06-12: Took a few hours to get my free OPSWAT API key, but once I got it, and applied the key per the instructions, the metascan extension worked as advertised. It provides another means of protecting computers from the nasties lurking out there! Very nice extension!!!
Dan Lanir 2014-12-02: This works great once I got the API key through a free OPSWAT Portal account I created. Now I have more confidence that the stuff I download via Chrome is clean
Dan Lanir 2014-12-02: This works great once I got the API key through a free OPSWAT Portal account I created. Now I have more confidence that the stuff I download via Chrome is clean
Samy Khellaf 2014-11-27: Trés efficace pour scanner des fichiers par un pannel d'antivirus. Une manière optimale pour assurer sa securité

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