Hands-on interactive tools to learn, explore, and test cybersecurity concepts — all free, no signup required.
Test the strength and security of any password in real-time
Generate MD5, SHA-1, SHA-256 hashes for any text input
Encode or decode Base64 strings instantly in your browser
Look up geolocation and ISP info for any IP address
Search and reference common CVEs by ID or keyword
Test your cybersecurity knowledge with our interactive quiz
Calculate vulnerability severity scores for bug bounty reports
Decode and inspect JSON Web Tokens � check claims, expiry and algorithm
Encode and decode URL strings for payload crafting and testing
Calculate network address, broadcast, hosts and subnet mask from IP/CIDR