Chowder by Clarity Soft
A practical ClamAV interface for Windows, Linux and Synology.
Chowder is a graphical interface for the ClamAV engine. Standard is free with no account or licence. Each download page clearly shows which test packages are currently available.
On Windows, Chowder is a second-opinion malware scanner designed to run alongside Microsoft Defender Antivirus — it complements Defender, it never replaces it. Chowder is not an EDR product and does not provide kernel-level real-time protection.
Powered by ClamAV, trusted for over two decades
A proven open-source engine
ClamAV has been in continuous development since its first open-source release in May 2002. It scans email gateways, servers, and network storage for organisations around the world — and it is the same engine inside every Chowder scan.
Maintained by Cisco Talos
Since 2013 ClamAV has been maintained by Cisco Talos, one of the largest commercial threat-intelligence teams in the world, whose researchers keep the signature database current against real, active threats.
Chowder is the interface
ClamAV does the detecting; Chowder makes it usable through a graphical interface. Clear scan controls, readable results, safe quarantine, automatic definition updates, and scheduling — no command line required.
Chowder is an independent product and is not affiliated with or endorsed by Cisco. ClamAV is open source under the GNU GPL, with thanks to Cisco Talos and the ClamAV community.
What you get
Scanning that respects your time
Run Quick, Full or Custom scans manually with Standard. Upgrade to Pro for scheduled scans and folder monitoring on supported platforms.
Always-current definitions
Update definitions manually in Standard, or let Pro check automatically so you spend less time managing scans.
Quarantine you can trust
Detected items are isolated safely. Review what was found, restore false positives, and keep a clear history of every scan.
For larger deployments
Repair, refurbishment and remanufacturing businesses can apply for a manually scoped Enterprise agreement. Capabilities are included only when the signed agreement says so.
Start scanning today, no account required
Standard includes manual scanning, manual definition updates, history and quarantine on supported release builds. Expiry never removes Standard or local data.