Free online virus scannerIs that filesafe to open?
Just drop it in. The open-source ClamAV antivirus engine checks it for viruses and malware in seconds.
- 01Free, no sign-up
- 02Processed in memory, never stored
- 03Any format, up to 10MB
Drop a file
or click to browse
Up to 10MB · Any format
- Engine ClamAV 1.5.4
- Signature DB #28149
- Updated Oct 10, 2026, 03:24 PM
- In-memory scanning
- Free · No sign-up
- Up to 10MB
02Live statistics
Scans so far
- Total scans
- 726
- Clean files
- 119
- Infected files
- 607
- Infection rate
- 83.61%
03Threat leaderboard
Most detected threats
- 01601 hits
Eicar-Test-Signature
- 024 hits
Heuristics.Structured.CreditCardNumber
- 031 hit
Txt.Backdoor.MetasploitPayload-9874938-0
- 041 hit
Heuristics.Structured.SSN
04How it works
Three steps. Seconds to a verdict.
- 01
Drop
Drag and drop a file, click to browse, or paste it from your clipboard. No account needed.
- 02
Analyze in memory
Your file is streamed to the ClamAV daemon straight from server memory — it never touches the disk.
- 03
Verdict, then gone
It is matched against millions of signatures, the verdict is returned, and the data is discarded immediately.
05Privacy
Your file stays yours.
Not stored
Files are never written to disk and are discarded from memory as soon as the scan completes.
Not shared
File contents are never sent to or shared with third parties.
Not tracked
No account required. Statistics are anonymous aggregate counts only.
06FAQ
Frequently asked questions
01Is it really free? Do I need an account?
Yes, it's completely free. No account and no software installation are needed — just drop a file in your browser.
02Is it safe to scan files online? Are uploaded files stored?
Files are processed in server memory only and never written to disk. They are discarded as soon as the scan finishes and are never shared with third parties. Some online scanning services share uploaded files with security researchers; FileScan never stores or shares your file.
03What kinds of files can I check?
Any format up to 10MB — PDFs, Office documents such as Word and Excel, executables (.exe), images, scripts and more. Archives such as ZIP are unpacked and their contents are scanned too. Password-protected archives cannot be inspected.
04Does it work on my phone (iPhone / Android)?
Yes. It works directly in the browser on iPhone, iPad and Android. Because iOS makes it hard for antivirus apps to inspect files on the device, it's a handy way to check attachments you receive by email or chat.
05If it says "No threats found", is the file definitely safe?
It means the file didn't match any known virus or malware signature. No scanner can detect 100% of threats, especially brand-new malware. For important files, use the link on the result screen to get a second opinion on VirusTotal.
06What should I do if a threat is detected?
Don't open the file — delete it. If you've already opened it, run a full scan with your device's security software and consider changing your passwords. If someone you know sent it, let them know their device may be infected.
07Which antivirus engine do you use?
FileScan uses ClamAV, a widely used open-source antivirus engine. Its virus definition database is updated automatically; the current version is shown at the bottom of the page.