Practical tools · Free forever · No signup
Cybersecurity Tools Tools
901 free calculators, converters and checkers — built for SG, MY and the region, reviewed with current figures. No accounts, no paywalls.
Turn CIDR notation into the exact IP range it covers
Score a vulnerability with the official CVSS v3.1 base metrics
Email authentication audit · policy explainer · 9 common DKIM selectors
A / AAAA / MX / TXT / CNAME / NS / SOA via Cloudflare DoH (1.1.1.1)
Expand, compress and subnet any IPv6 address
See the real working time on a CISA KEV remediation deadline
Memorable, strong passphrases — generated in your browser
zxcvbn-style entropy + crack-time at 4 attack profiles · browser-only
Vet AI agent skills before enterprise deployment — built by ThreatBook
Find the homoglyphs — UTS #39 skeletons, scripts and punycode for any string
Open-source, locally deployed Agentic SecOps platform — 7 specialist agents, 150+ tools, autonomous from day one
Free cyber threat intelligence portal — IP, domain & file verdicts with APT attribution and an AI co-pilot
Free, open-source honeypot platform — 90+ deception services, one console, native ThreatBook intelligence
Free cloud malware sandbox — detonate a suspicious file and read the behaviour, not just a verdict
Free threat-intelligence community — look up an IP, domain or hash, and pipe the same verdicts through a Cloud API
DNS-layer secure web gateway — block malicious destinations before a connection is ever made
Intelligence-driven network detection — read mirrored traffic and find the compromise the perimeter missed
Endpoint detection and response — behaviour-based detection tied to the same intelligence as the rest of the stack
Breach-and-attack simulation that fires real payloads at your controls — and reads your own tools' logs to see what actually caught them
An ASEAN-built exposure-validation platform — attack-surface discovery, automated red teaming and threat intelligence around the ATLAS validation engine