About tool:
Bellingcat's continuously updated public toolkit catalogue: hundreds of curated OSINT tools grouped by data type with usage notes and examples.
Australian OSINT firm publishing dozens of free in-house tools (alt-tech search, profile checkers, data converters) alongside commercial training and Nexus Xplore.
Debian-based offensive-security distribution preloaded with hundreds of OSINT, reconnaissance and forensics tools. The default analyst VM for red-team-leaning workflows.