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masscan vs Advanced Port Scanner: catalog facts
masscan	Advanced Port Scanner
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free to download and use.
macOS, Linux, Command line	Windows
Uses a high-throughput command-line scanning engine.	Fast multi-threaded port scanning Identifies program versions on open ports
High packet rates can overwhelm networks if poorly configured.	Windows only Closed source
Downloadable app	Downloadable app
Open source	Closed source
License: AGPL-3.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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