Pentest-Tools Port Scanner vs PortScannerLabs

Pentest-Tools Port Scanner is a cloud-hosted Nmap scanner for discovering open TCP and UDP ports and services on network targets. Users can scan a domain, one IP address, or a network range, including bulk IP ranges. Light scans cover the top 100 TCP and UDP ports; deep scans can extend to all 65,535 ports. Options include service-version and operating-system detection, TCP SYN, full TCP connect, and UDP scanning. Findings can be exported in CSV, JSON, or PDF. The product describes scheduled and parallel scans, notifications, API access, and scan-template workflows, with integrations including Jira, Slack, Microsoft Teams, webhooks, Burp Suite, and GitHub Actions. Internal targets require the VPN Agent, and internal network scanning is an optional add-on. A free plan is listed, but its tier limits are unspecified. Paid plans start at $95 a month, with pricing varying by asset count and billing cycle. The full scanner has a seven-day trial requiring a business email and card; cancel before day eight to pay nothing.

PortScannerLabs is a free cloud web tool for checking an IP address or domain for common open, closed, or filtered network ports. It flags risky exposures and separates port state from risk level, with links to guidance about the service and ways to close it. The scanner uses nmap with service and version detection for open ports. A default scan checks 12 common TCP ports, including SSH, Telnet, MySQL, RDP, HTTP, and HTTPS. Leaving the target blank scans the user’s public IP as seen from outside the network. Scans with version detection can take up to 15 seconds. No account, signup, or installation is required. The site describes the tool for home and small-business users, IT administrators, developers, gamers, and self-hosters. Users must confirm authorization before scanning another target. PortScannerLabs rate-limits scans and restricts full-range scanning of arbitrary targets for anonymous users. It says it retains only minimal technical logs needed to operate the service and prevent abuse, and does not sell personal data. The Free port scanner costs nothing.