Free Cybersecurity & Networking Tools

Free, fast security and networking tools from the Cyber Strike News team, built for network engineers, sysadmins, SOC analysts and students. Every tool runs entirely in your browser, so nothing you type is sent to us or stored. No sign-up, no limits.

Network tools

• Subnet Calculator (IPv4) – a free IP subnet and CIDR calculator: network and broadcast address, usable host range, subnet and wildcard masks, binary view and subnet splitting.
• IPv6 Subnet Calculator – network range, first and last address, number of /64 subnets, address type and ip6.arpa reverse DNS zone.

Password tools

• Password Strength Checker – test how strong a password is, see estimated crack times, get tips to improve it, and run an optional check against known data breaches.

Coming soon

We are adding a password generator, hash generators (MD5, SHA-256, NTLM and bcrypt) and a CIDR to IP range converter. For the threats these tools help you defend against, follow our vulnerability news, threats and malware and Patch Tuesday coverage.