Skip to scanner
FileScan

FileScan

Help

01

About FileScan

FileScan is a free online service that scans uploaded files for viruses and malware using the ClamAV antivirus engine.

02

How to use

1. Drag & drop a file, click to browse, or paste with ⌘/Ctrl + V. 2. Upload and scanning start automatically. 3. See the verdict — green for clean files, red when a threat is detected. 4. Use the SHA-256 hash to get a second opinion on VirusTotal.

03

About ClamAV

ClamAV is an open-source antivirus engine capable of detecting trojans, viruses, malware, and other threats. The virus definition database is updated regularly.

04

Privacy

Uploaded files are processed in memory only and discarded once the scan completes. File contents are never shared with third parties. The SHA-256 hash is calculated inside your browser.

05

Limitations

The maximum file upload size is 10MB. All file formats are supported, but 100% detection is not guaranteed. For critical files, we recommend verifying with multiple security tools.

←Back to home

Privacy Policy

Last updated: May 2, 2026

FileScan (hereinafter referred to as "the Service") respects user privacy and is committed to protecting personal information. This policy sets out how information is handled in connection with the Service.

1. Operator Information

Service name
FileScan
Service URL
https://scan.frees.jp
Operator contact
[email protected]

2. Information We Collect

The Service collects the following information to the extent necessary to provide its features.

2.1 Files Uploaded by Users

To provide the virus scanning feature, files uploaded by users are processed temporarily on our server.

  • Files are processed only in server memory (RAM) and are not written to disk.
  • Once a scan is complete, the file data in memory is discarded.
  • The contents of files themselves are not stored in any log.

2.2 File Metadata and Scan Results

In connection with scan processing, the following information is collected and used. This information may be recorded for the purposes of operational monitoring and the display of statistics.

  • File name
  • File size
  • MIME type
  • Time taken to scan
  • Scan timestamp
  • Whether a virus was detected and the name of any detected threat

2.3 Cookies

The Service uses the following cookies to improve the user experience.

Cookie namePurposeExpiration
localeStores the display language (Japanese / English)1 year

In addition, the third-party services described below (Google Analytics, Google AdSense) may use their own cookies.

2.4 Access Logs

For server operation purposes, information such as IP addresses, user agents, referrers, and access timestamps may be recorded in access logs. This information is used to prevent abuse and maintain stable operation.

3. Purpose of Use

Information collected is used solely for the following purposes.

  1. Providing the virus and malware scanning feature
  2. Returning scan results to users
  3. Stable operation of the Service and prevention of abuse
  4. Aggregating detected threats and displaying the "Threat Detection Ranking" and "Scan Statistics"
  5. Improving the quality of the Service and analyzing usage

4. Retention Period

InformationStorage locationRetention period
Uploaded file contentsServer memoryDiscarded upon scan completion (no persistent storage)
Detection counts per threat name (aggregated)Data storeRetained continuously for statistical display
Total scan and infection counts (aggregated)Data storeRetained continuously for statistical display
Operational monitoring logs (including metadata such as file names)Operator's logging infrastructureAs long as required for operations
Access logsServerAs long as required for normal operations

Information stored as aggregated values is retained in a form that does not allow identification of specific users or specific files.

5. Disclosure to Third Parties

The Service does not provide collected information to third parties.

6. Use of Third-Party Services

The Service uses the following third-party services to provide and operate its features. These services handle information in accordance with their respective privacy policies.

6.1 Google Analytics

The Service uses Google Analytics, provided by Google LLC, to analyze usage of the Service. Google Analytics uses cookies to collect access information about users; this information is collected anonymously and does not identify individuals.

You can disable data collection by Google Analytics using a browser add-on or similar.

6.2 Google AdSense

The Service may use Google AdSense, an advertising service provided by Google LLC. Third-party vendors, including Google, may use cookies to serve ads based on a user's prior visits to the Service or other websites.

6.3 ClamAV

The Service uses ClamAV, an open-source antivirus engine, internally on the server as its virus scanning engine. All scan processing is performed within the Service's own server, and files are not sent to any external ClamAV service.

7. Security

The Service takes the following measures to prevent leakage, loss, or damage of collected information and to otherwise ensure its safe management.

  • Uploaded files are processed only in memory and are not persisted to disk
  • Communication is encrypted via HTTPS
  • Access to servers is restricted and access logs are monitored
  • Information sent to third-party services is kept to the minimum necessary

8. User Rights

Users may request disclosure, correction, suspension of use, or deletion of their personal information held by the Service. However, the Service does not, as a rule, store file contents themselves; the information held is limited to aggregated values and operational logs. For inquiries, please contact us via the address listed in "11. Contact".

9. Prohibited Acts

When using the Service, users must not engage in any of the following acts.

  • Uploading files that violate laws or public order and morals
  • Uploading files that infringe the personal information, confidential information, or intellectual property rights of third parties
  • Intentionally distributing malware through the Service
  • Placing excessive load on the Service's servers or network

For highly confidential files or files containing personal information, users are responsible for deciding how to handle them.

10. Changes to the Privacy Policy

The Service may revise this policy as necessary. The revised privacy policy will take effect from the time it is posted on this page.

11. Contact

For inquiries regarding this policy or the handling of personal information, please contact us at the following address.

Email: [email protected]

Revision History

DateDescription
May 2, 2026Initial version