LiquidText
Description: LiquidText is a PDF reader and annotator designed for active reading, analysis and research. It allows users to easily highlight, excerpt, organize and share passages from PDF articles and documents.
Type: software
Nmap
Description: Nmap is an open source network discovery and security auditing tool. It is used to discover hosts and services on a network and to detect potential vulnerabilities.
Type: software
Pricing: Free