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ClamAV vs ESET Endpoint Antivirus: catalog facts
ClamAV	ESET Endpoint Antivirus
Free Free and open source under the GPL 2.0, maintained by Cisco Talos.	Paid Requires a paid ESET business subscription and activation key.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Signature format is open, so anyone can write detections Designed to be embedded in mail servers, file shares and upload pipelines	Runs on Windows, macOS and Linux endpoints Central management through cloud or on-premises ESET PROTECT console
Detection rates trail the commercial engines in independent testing Not a real-time desktop protection suite on its own	Needs a paid business license key to activate Extra features such as disk encryption and patch management require ESET PROTECT
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.